A couple days ago we had a March Babies birthday party here at the house. It’s a tradition my sister started a few years ago because so many of her friends have birthdays in March, and this is a great way to kill a bunch of birds with one shotgun. As I was sitting listening […]
More on the brain’s default network: The default network in the brain is considered a “second brain” because it turns on when the rest of the brain is at rest, and turns off when the rest of the brain is at work. Normally, that is. As people age, the default network is less and less […]
Yesterday I asked my sister—who is visiting from abroad—what signs of Alzheimer’s she sees in herself. She rattled off some memory problems such as forgetting names of acquaintances or not being able to place someone’s face when out of context. Nothing particularly Alzheimersy, just decreased mental sharpness. She then asked me if I was experiencing […]
Here is something frustrating about clinical trials of Alzheimer’s drugs: the FDA requires that such trials show an almost immediate improvement in memory tests of participants in order for the drug to get approval, disregarding improvement in other symptoms, and consequently derailing a possible cure for this dreaded disease. Here is why I think there […]
Deep In The Brain is a cerebral self-examination written by a philosophy professor who was riding the top of a success wave when he was diagnosed with Parkinson’s. Talk about the relationship between mind and brain! Here is one who, thanks to his training, steps outside himself to make an objective assessment of his behavior […]
Deep In The Brain is a cerebral self-examination written by a philosophy professor who was riding the top of a success wave when he was diagnosed with Parkinson’s. Talk about the relationship between mind and brain! Here is one who, thanks to his training, steps outside himself to make an objective assessment of his behavior even as he battles the attachment he has to that self.
In this book, Helmut Dubiel analyses his response to the personal and social implications of his Parkinson’s disease. He does not blame or excuse. Rather, he tries to put his and other’s reactions in context of the overarching laws of social interaction.
There is pain in this book. There are lies and pity and anger and judgment. But mostly, there is acceptance of the facts of disease and an acknowledgement of man’s irrepressible will to live and to thrive.
Yesterday as I read this book to Dad, I noticed him fidgeting more than usual. I stopped and asked him what was the matter. He said, “It seems like you’re reading about me.” I explained that this was a philosophy professor writing about himself. Dad calmed back down and listened with interest. Dad doesn’t talk about his inner battles much, so this would logically be painful for him. But good. I think this was one of Professor Dubiel’s hopes–that through his honest self-examination, others would feel released from the need to hide from their disease and, in so doing, find relief.
I’ve often asked people, “Which would you prefer: to lose your body or to lose your mind?” Given that I live with one parent with Alzheimer’s and the other with Parkinson’s, this question has personal weight. In his book, Professor Dubiel clearly expresses his preference for holding onto the self despite the ostracism brought on by the physical distortions of Parkinson’s. Knowing you are being unfairly rejected is still preferable to knowing nothing at all. On the other side, in Still Alice the protagonist affirms this appreciation for the self when–in a lucid moment–she acknowledges “I didn’t meant to get this way. I miss myself.” The mind is a far greater gift than the body.
Of course, in the end, Parkinson’s takes the mind as well.
My take-away? Pray for a cure for both diseases; forgive my and others’ shortcomings; enjoy today.
In continuation of Alzheimer’s and Glucose Metabolism: The Niacinamide Experiment Part 1
This post is simply me mulling over things I’ve read in light of Mom’s dementia and my own experience with stress and mental short-circuiting, with the conclusion that in some cases of Alzheimer’s, intestinal flora could be greatly to blame. My conclusion also points to the possible way niacinamide could function in correcting one of the malfunctions in the gut-brain axis.
The Gut-Brain Axis
In-depth studies of human intestinal microbes are just now coming into maturity. The Human Microbiome Project is fueled by the increasing belief that the population of bacteria and yeasts that inhabit the human digestive tract is greatly responsible for how the body and mind develop and how they continue to function or malfunction as we tinker with the balance of flora in our gut:
Visionaries are hoping for cures for some forms of obesity and anorexia along with various forms of cancer, asthma, multiple sclerosis, Alzheimer’s, lupus, and most of the major psychiatric diseases. In the future, Blaser [of the infectious-disease research lab at New York University] says, pediatricians could help prevent these diseases by infecting babies with a starter kit of friendly bacteria. “Bottom line, humans and our fellow animals have been colonized by microbes for a very long time, going back a billion years. The microbes that we carry have been selected because they are helpful to us. They participate in human physiology. They are a compartment of the body, like the liver or the heart.” (1)
When the BP oil spill happened in the Gulf of Mexico, we were all
I don’t know how much I’ll be able to write about Parkinson’s here. If I write about Parkinson’s, it’ll be about how it’s affecting Dad. And if I tell you the things this disease makes Dad do, you won’t have a pretty picture of Dad. And that ain’t fair.
Here’s just a little, white example. A couple days ago Dad had to go to the bathroom. He asked what direction the bathroom was, and I pointed it out. He walked to the bathroom door, then asked me again where the bathroom was. I told him he was standing at the bathroom door. He said, “And now what?” I explained that he had to walk over to the toilet. He was standing four feet from the toilet and asked, “Where?” I put pressure on his back and gently led him to the toilet. He said, “And now?”
I had to help him through the whole process.
The concept “how to back up” seems to be the biggest obstacle his brain has to overcome. He can’t figure out how to back up to the toilet before sitting, or once he’s in a chair, how to back up from the edge. The same when he goes to bed.
My sister and I try “scoot back, Dad.” He scoots forward even though he’s already on the edge of whatever. We try changing the cue. “Put your back here” (while patting the back of the chair). Nothing. “Lift your bottom and move it back.” Nothing. Yesterday I tried switching languages. I said, “Put your butt in reverse” in Portuguese. He couldn’t do it, but he did double over laughing. And that’s a huge gift.
But these gifts are hard to come by. So I probably won’t write much about Dad and his Parkinson’s. I’d rather you see the adventurous man who loaded up his wife and eight kids in a van and drove from New York to Bolivia in 1966. This man taught us all kinds of good things about nature and God, and I’d rather not leave you with a highly unbalanced picture of who he is.
We are continually hearing that Medicare is going to go bankrupt by mid-century thanks to the skyrocketing costs of an aging population in need of prescription drugs and dementia care.
Medicare Part D costs to the government in 2010 were $62 billion and are projected to climb to $150 billion by 2019. And Medicare costs for Alzheimer’s care will increase more than 600 percent, from $88 billion today to $627 billion in 2050.
Here is a double-barreled solution to the costs of Medicare Part D and Alzheimer’s care: replace prescription drugs with equally effective placebos and employ mildly-cognitively-impaired individuals as healthcare enhancement agents.
This is not a joke. Here is why this would work and save the federal government billions:
Placebos—if delivered properly—could potentially be more effective and considerably less costly than many current prescription drugs.
Here is an example of an experiment with placebos for a “purely physical ailment”:
One group was simply put on a waiting list; researchers know that some patients get better just because they sign up for a trial. Another group received placebo treatment from a clinician who declined to engage in small talk. Volunteers in the third group got the same sham treatment from a clinician who asked them questions about symptoms, outlined the causes of [their ailment], and displayed optimism about their condition.
Not surprisingly, the health of those in the third group improved most. In fact, just by participating in the trial, volunteers in this high-interaction group got as much relief as did people taking the two leading prescription drugs for IBS. And the benefits of their bogus treatment persisted for weeks afterward, contrary to the belief—widespread in the pharmaceutical industry—that the placebo response is short-lived.
It has been found that placebos can sometimes work even better than the leading prescription drug for any given disease, with certain factors contributing to their effectiveness:
Yellow pills make the most effective antidepressants, like little doses of pharmaceutical sunshine. Red pills can give you a more stimulating kick. Wake up, Neo. The color green reduces anxiety, adding more chill to the pill. White tablets—particularly those labeled “antacid”—are superior for soothing ulcers, even when they contain nothing but lactose. More is better, scientists say. Placebos taken four times a day deliver greater relief than those taken twice daily. Branding matters. Placebos stamped or packaged with widely recognized trademarks are more effective than “generic” placebos. Clever names can add a placebo boost to the physiological punch in real drugs. Viagra implies both vitality and an unstoppable Niagara of sexy.
If you’re thinking that the suggestion of using placebos is unethical, check out this study:
“Not only did we make it absolutely clear that these pills had no active ingredient and were made from inert substances, but we actually had ‘placebo’ printed on the bottle,” says Kaptchuk. “We told the patients that they didn’t have to even believe in the placebo effect. Just take the pills.”
The participants were monitored for three weeks and, at the end of the trial, 59% of the patients given the placebo reported ample symptom improvement as compared to 35% of the control group. Furthermore, participants who took the placebo had rates of improvement about equal to the effects of the most powerful IBS drugs.
Deception is unethical. Honesty is not. If there is a joke it’s in the current medical practice of prescribing expensive drugs that are sold without the most important ingredient that made them effective in the trials—the same ingredient that makes placebos effective.
As we would all imagine, the most important factor in the effectiveness of placebos is the doctor’s bedside manner. That is, the presence of compassion in the treatment of an ailment.
Regarding a Cognitively Impaired Workforce
The double-barreled solution in employing people with mild dementia as healthcare enhancement agents is that we would save on prescription drugs, hospital recovery times, and also be assigning purpose to people with mild cognitive impairment. Folks whose initial downward slope in the aging process is a bit early are not an “unproductive force in the economy.” There is richness of intellect, creativity, and compassion that could be tapped rather than stomped on per our current dementia stigmatization.
There was a time when people with physical disabilities couldn’t get jobs. But we’ve come a long way in learning of the tremendous contribution that the disabled can give, and have accommodated the workplace for such individuals with ramps and wider doorways and elevators in order to reap this benefit. Why not do the same for MCI individuals? Why are we instead discarding this tremendous resource?
In reading blogs of people with early-onset Alzheimer’s, one of the biggest stresses for both the sufferer and the government is issuance of social security disability benefits. Why not offer employment rather than cash benefits? If compassion at the bedside of a sick person dramatically speeds the healing process, think of the savings accrued by employing love & joy-givers in hospitals, clinics, nursing homes?
In his book The Gift of Pain, Dr. Brand lists the factors that enhance pain and prolong the healing process: fear, anger, guilt, loneliness, boredom, helplessness. He then describes how perfectly suited many institutions are in promoting these feelings with their sterile settings, uncommunicative doctors and nurses, boring surroundings (and now that nurses spend all their time at computer terminals per our new streamlining guidelines, these factors are further compounded). Healthcare institutions could cut their costs by employing people to:
Design and paint interesting scenes on hospital ceilings
Play instruments in institutional corridors (not just harps, please!)
Make dolls for nursing home patients
Read aloud to patients, or simply visit
Reupholster institutional furniture with fun fabrics
Take certified dogs into institutions for cheery visits
The savings in dollars would be compounded all around, and the savings in dignity for all healthcare users a welcome change for our society.
e all know, even without reading research papers, that music has emotional benefit: it can excite and calm and induce a wonderfully cathartic weeping session. This applies whether you’re healthy or sick; whether you have Parkinson’s or autism or Alzheimer’s.
But studies have found that music can also be of cognitive benefit: it helps people remember things better.
What exactly does this mean, and what specifically does it mean for an Alzheimer’s patient? Does it mean that if you play the oldies station in the background all the time, your Mom will wake up one day and remember everything again?
Let’s look at the evidence:
First of all, "music" is a pretty general term. Are we talking about singing? Playing a guitar? Listening to Mozart? Listening to Bobby McFerrin’s improvisational jazz? Believe it or not, these are all different things.
According to a study reported by Time Magazine,("Music on the Brain")
Different networks of neurons are activated [in the brain], depending on whether a person is listening to music or playing an instrument, and whether or not the music involves lyrics.
In another study, quoted in Neuroscience for Kids,
researchers have recorded neuronal activity from the temporal lobe of patients undergoing brain surgery for epilepsy. During this study, awake patients heard either a song by Mozart, a folk song or the theme from "Miami Vice". These different kinds of music had different effects on the neurons in the temporal lobe.
Also, from Time'“Music on the Brain”
Experimental Audiology in Germany has shown that intensive practice of an instrument leads to discernible enlargement of parts of the cerebral cortex, the layer of gray matter most closely associated with higher brain function.
As you can see, different music affects different parts of the normal brain in different ways.
People are always studying the music-brain connection, trying to understand the mystery of it. There was a particular study done in 1993 that tried to see if music affected memory. The researchers used a song by Mozart for their experiment, and their results seemed to show that this composer’s music improved test-taking. This became widely known as The Mozart Effect, and people started playing Mozart to their unborn babies thinking it would give them a head start in learning.
Though later studies failed to duplicate the Mozart Effect (perhaps the only real effect is that Mozart helps relax the body right before a test), that original research sparked further research into music-as-memory-aid. A recent study, for example, found that Alzheimer’s patients can remember new information if it is sung to them much better than if it is spoken (as opposed to healthy people who can remember it equally well when sung as opposed to spoken).
We also know without reading studies that music helps trigger old memories. For example, when I hear the song "Dust in the Wind," I am immediately transported back to our family van as we drove across the country in 1977. I remember my oldest sister introducing this song to me, and how it resonated with the angst of my teenage years, etc. A whole cascade of memories brought on by a single song.
In a study reported by the Telegraph in 2009, researchers found that this recall effect is due to the fact that music is processed in the same area of the brain that forms vivid memories. They furthermore found that such memories appear to be immune to the ravages of Alzheimer’s. And this could lead to a unique kind of therapy:
Because memory for autobiographically important music seems to be spared in people with Alzheimer’s disease, …making a "soundtrack of someone’s life" before their mind is too damaged, and playing it back to them could help form a resistance to the disease.
Love the idea! Plus I have a variation on this idea from watching this next video of Bobby McFerrin (at a conference called "Notes and Neurons"), and from observing Mom as I play the piano. First, here’s Bobby:
What Bobby is doing here is getting the mind to go in a familiar direction (the pentatonic scale), then leaving an auditory blank and letting the mind fill it in. I mean, aside from jumping around, that's what he's doing. He’s giving the mind a puzzle to solve. He’s making the mind work. And working the mind is better than not working the mind if you want to keep it.
The next part of my idea came from playing the piano for Mom and watching her reaction. You should know Mom hasn’t spoken but a few words in a couple years, and she no longer sings intelligible tunes. You should also know that I don't play the piano. I used to when I was seven, but now my playing is reduced to guessing the notes with my right hand. I can play fast enough for the tune to be recognizable. Barely. Fortunately for Mom, the tune is always a hymn—something she is very familiar with. Unfortunately for Mom, I mangle the tune. And that's where the puzzle comes in.
See, when my finger's can't find the right note, Mom gets exasperated and sings it out loud to help me find the dang thing. I'm even wondering if this puzzle-solving exercise is a factor in Mom's recent awakening.
So here is my variation on the soundtrack idea. Try this exercise (for an Alzheimer’s patient) with the following video clip:
Play it once. It will probably be familiar to the listener already, but there are enough repetitions in this piece that parts of it will quickly become familiar if they aren’t already. Play the video again, but pause the video every so often. There are a ton of repeated theme snippets. Pause before a theme is repeated and see if the listener is prompted to supply the missing piece. If they do, you've got a good puzzle to use.
Then, if you do this with that "Life Playlist", you should be able to double the benefit in fighting that Alzheimer’s monster.
Music and Caregiving—Pandora to the Rescue
Alzheimer’s and Music: Stimulating the Brain into Action
Posit Science Blog, Your Brain on Jazz
American Music Conference, Music and the Brain
As I was sitting listening to our various conversations around the table, something struck me as different this year. We’re all hovering around 50—give or take a couple years—and the aging process is beginning to take a more prominent seat at the table. Not only do conversation topics start with the premise of aging: declining health, the cost of health insurance, etc, but it seems that no matter what the topic, it eventually touches on something to do with aging.
Yesterday I came across Lewis Carroll’s “Jabberwocky” poem in Alice in Wonderland (you can download the whole book for free at Gutenberg).
I’ve always loved how Carroll made nonsense words sound like language. But what got me this time around was Alice’s response, and the parallel of that with how I feel about “talking” to Mom.
‘Twas brillig, and the slithy toves
Did gyre and gimble in the wabe;
All mimsy were the borogoves,
And the mome raths outgrabe.
‘Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!’
John Thorndike’s The Last of His Mind is a work skinned in the devastating story of Alzheimer’s, but shows what an unexpected gift caregiving can be for a child who longs to understand the one who shaped so much of his own understanding of life and relationships.
In these pages, John Thorndike gives up the comforts of his normal life in Ohio to care for his father in the last year of his battle against Alzheimer’s. John takes this time to examine himself in the light of the two people who shaped him most—his proper, emotionally absent New England father and his passionate, dissatisfied mother. “No wonder I study my parents,” he says. “Within the compass of their lives, everything is foretold.”
More than anything, the author wants a peek at his father’s heart, but finds it impossible to reach through the shining armor that encases him. In the end, though, he finds that it’s not his father’s armor that shines, but his character. And in the end, the year of loneliness and frustration yields the sweetest of fruit: a softer, mended heart.
John Thorndike brings out the True by exposing the Fraud, and it’s contagious. I feel wholly exposed after reading this book, yet more able to forgive myself, to love Dad—imperfections and all, and to accept the inherently flawed but courageous effort we all make in loving those closest to us.
True, this book is about the beastliness of Alzheimer’s, but it should be read by anyone who hungers to know a parent and to find themselves healed in the acceptance of an imperfect knowledge.
How much time is enough time? We know we are mortals and we know life is but a breath. In light of eternity, we calculate that 100 years passes as quickly as twenty. Yet, given anything less than 100, and we say we’ve been “cut off.”
My big, strapping brother-in-law lays in the hospital right now, fighting for each new minute after a two-year battle with brain cancer. He is tired, and he is ready to rest. We would prefer the doctors find a cure and make him bounce back, but we want to let him go.
Throughout this whole battle, Ken’s mind worked around his brain to bring humor and gratitude to his situation. He firmly believes God’s purposes can be worked through the worst tragedies, and it is amazing to hear how his concerns were always for the eternal perspective he could bring to the waiting room, the surgery room, the recovery room.
Ken’s life may be cut short in our view, but it has been a life well-lived, and that’s more than a lot folks can say. Socrates said that an unexamined life is not worth living; an anonymous person added that an unlived life is not worth examining. I can vouch for Ken that he’s had a life worth examining.
April 26, a.m.: Ken had a brain hemorrage last night and is on life support. Awaiting a family gathering to let him go.
April 26, 7 p.m. Goodbye Kenny. From someone who was present at his bedside: ” just wanted to write and let you know that Ken’s passing was beautiful in the midst of family and hymns and Scripture. The more that Daniel read and Ruth recited the easier his respirations…and soon he just passed on.”
We already miss your booming laugh, your exhuberant living, and your unwavering faith. Save us a place at the banquet table, and we’ll see you in the morning.
A curious thing happened to me on my way to finding the cure for Alzheimer’s all on my own: I gained more respect for drug research companies, for neurologists, for folks who are obsessed with theories and practically live in their labs trying to prove their theories. More specifically, I gained greater respect for drug companies that fail colossally, then dust themselves off and try again.
After Eli Lilly revealed that their latest trials of the Alzheimer’s drug semagacestat resulted in greater dementia in their subjects, the response from the public was overwhelmingly angry. Adding to Lilly’s revelation, a recent report on Alzheimer’s drug company stocks by NeuroInvestment painted a bleak picture of the effectiveness of Alzheimer’s drug development across the board, giving the impression that research in the field is pretty much a crap shoot.
If you follow the very well-attended Alzheimer’s Reading Room online, you will see an interesting reaction to these reports. Richard Taylor (who suffers from Alzheimer’s) is one of many who feel crushed and devalued by the repeated failures of Alzheimer’s drug trials. Imagine trying to live with hope, then seeing over and over again that no matter how much money and time is spent on Alzheimer’s research, reality refuses to sustain any hope.
No matter the good intentions, Alzheimer’s research seems a recipe for failure.
This week I got a wee taste of what things might look like from the inside of these drug companies. For the past few years, I’ve been building a theory of Alzheimer’s of my own and keeping my eyes peeled for evidence that would support my suspicions. More recently, I decided to take a serious look at my hunch and see if a) I could gather legitimate scientific data that would shed light on my “theory,” and, b) see if this data had any kind of flow to it—if it had a “storyboard.”
My motives were twofold: I like to discover truths; and I very much want to avoid getting Alzheimer’s (like my mother). Curiosity and Fear fed my research. When I finally thought I had an airtight storyboard, excitement at the implications led to action: I shot off my “storyboard” to a leading researcher in the field.
Sobriety set in the next day. I took another look at what I’d written, then re-checked my sources and found not just one, but several really weak extrapolations in my thinking, and one particularly week substantiation of the evidence. I should have waited. I should have spent another eight weeks (I know, right?) researching before putting it out there and risking embarrassment.
But think about it: the possibility of being right on something so devastatingly urgent will make people take risks. And I’m not talking only about the drug companies; people signing up for drug trials are equally taking risks, knowing that the outcome is not certain at all. When you consider that it takes years and years and years to move inches in the direction of a safe and effective drug release (such as the six years it took to find how a fine-tuned alternate to semagacestat About a decade ago, Dr. Greengard and his postdocoral students made their first discovery on the path to finding the new protein. They got a hint that certain types of pharmaceuticals might block beta amyloid. So they did an extensive screen of pharmaceuticals that met their criteria and found that one of them, Gleevec, worked. It completely stopped beta amyloid production. That was exciting, until Dr. Greengard discovered that Gleevec was pumped out of the brain. Still, he found that if he infused Gleevec directly into the brains of mice with Alzheimer’s genes, beta amyloid went away. ‘We spent the next six years or so trying to figure out how Gleevec worked’ on gamma secretase, Dr. Greengard said. He knew, though, that he was on to something important.functioned in mice), the urgency for a cure leads all sides to gamble on a shortcut. And we’re not interested in companies that aim to keep the Alzheimer’s victim home “three months longer.” We want a cure.
Colossal goals risk colossal failures.
Can you just imagine what went through the minds and guts of Lilly’s leaders when they realized they’d failed? When they had to go out there and tell their shareholders of their failure?
“Well, there’s good news, and there’s bad news. The good news is that our drug was more effective than the placebo…”
Of course drug companies are going to be motivated by the excitement of financial gain. But they’re also going to be motivated by the fear of getting it wrong. They know what failure can do to their reputations and their ability to fund further research.
Today, Indystar.com published a very thoughtful article on Eli Lilly’s semagacestat trial failure. You won’t have to wonder what it was like behind the scenes at Eli Lilly—the article gives you a pretty well-rounded look. You also won’t have to wonder what someone’s response would be after being given the drug and having it backfire. From the wife of one participant:
“I just hope the researchers dig their heels in and keep trying to find a cure,” Dianne said. “That’s the important thing.”
I know there’s the whole layer of marketing that plants diseases into people’s conciousness so drug companies can make money off their fears. For this there is a solution: TiVo (and the advice of a good doctor).
But we shouldn’t assume that everyone researching Alzheimer’s has only one goal in mind—to get into our pockets with random, pointless medications. Any rational company would avoid this particular field: the risk of failure is pretty much guaranteed.
I hope we can learn from Eli Lilly and other Alzheimer’s research companies to risk failure; to work even harder; to join forces in finding a cure.
It’s a very painful fact that I miss Dad and that I wish I had spent more “being time” with him instead of dividing my time between being and being productive. As I’ve mentioned before, in hindsight, all you want is to be near the one you’ve lost just a few more minutes. Nothing else matters but being in the person’s presence and having them know you are there.
I want to do this with Mom, but Alzheimer’s presents a huge problem. Whenever I see Mom sitting alone, it kills me because she looks so terribly alone. So I go sit with her, and on a good day—most days—she is riveted with my presence. But the second I leave her sight—to fling clothes from the washer to the dryer; to use the bathroom; to make a cup of tea—she is completely alone again. And in those moments—from her perspective—she has always been and always will be alone. There is no memory of my having been in her presence all morning other than a few moments of necessary “productive time.”
I hate this disease. There is no sufficient quality time you can give someone with Alzheimer’s. As a caregiver, it feels like there is no neutral status for you as a human being: you are either benevolent or malevolent; sacrificial or selfish; worthy or worthless.
Alzheimer’s isn’t a one-man disease; it does a pretty good job of spreading the pain around.
Anyway, ever since my sister-in-law’s mother was taken to the doctor with signs of Alzheimer’s and discovered to have nothing but dehydration, I’ve been meaning to read up on how exactly the lack of water hinders brain function.
Here’s what I found about dehydration and the aging brain:
Not much—unless you count articles on websites trying to sell water filtration systems.
The fact that water makes up 70-80% of a nerve cell and transports both nutrients and wastes from neurons means it is essential for proper brain function all through life. That’s a given. What’s not a given is how much a brain has to be depleted of water to affect cognition.
Rigorous research on the topic of the brain and dehydration is limited. Even the “standard facts” about the body and water are all over the place: babies come out of the womb composed of 90% water; no, 78%; no, make that 70%. In adults, the proportion is 60% water for males and 55% for females. The consensus is 50-60% for adults in general. The brain is 60% water; nay, 90%. Whatever.
As for how much water you need to drink on a daily basis to be properly hydrated, oy, there is no consensus. For years I’ve been hearing “8 cups a day.” No allowance for a sedentary life or for someone with a diet of fruits and vegetables (which are high in water content); no penalty for eating junk food (which would increase the need for the detoxifying properties of water) or for spending days cooped up near a wood stove.
One article quoted the Mayo Clinic as saying that “the average adult loses more than 80 ounces of water every day through sweating, breathing, and eliminating wastes,” and therefore you’d have to drink 10 cups of water/day to rehydrate. I searched for the quote on the Mayo Clinic site and didn’t find it. Instead, I found a recommendation for 6-8 cups of water per day.
Suppose you take the most conservative recommendation of 6 cups per day–do you follow that? I don’t think I’ve ever gone one whole week drinking that much per day.
It has been estimated that 75% of Americans are chronically dehydrated. OK, that figure is questioned. But it seems to be a fairly hard fact that “among people over 65, dehydration is one of the most frequent causes of hospitalization.”* Understandable: throw in a bit of incontinence, and fear of hydration soars. Also, some medications are diuretics, and after 50, the body loses kidney function and is less able to conserve fluids.*
But how bad is dehydration for your brain?
According to Lumosity, when your body lacks water,
brain cells and other neurons shrink and biochemical processes involved in cellular communication slow. A drop of as little as 1 to 2% of fluid levels can result in slower processing speeds, impaired short-term memory, tweaked visual tracking and deficits in attention. With proper hydration however, neurons work best and are capable of reacting faster.
But pinning down the exact link between hydration and cognitive function is tricky in the lab. From Hydration and Human Cognition:
Although adequate hydration is essential for optimal brain function, research addressing relationships between hydration status and human behavior and cognitive function is limited. The few published studies in this area are inconclusive and contradictory. The impact of variations in hydration status, which can be substantial as humans go about their daily activities, on brain function and behavior is not known and may impact quality of life.
From PubMed’s Hydration and Cognition: a Critical Review and Recommendations for Future Research: “The limited literature on the effects of dehydration on human cognitive function is contradictory and inconsistent.” The monkey wrench in research here is given as confounding factors:
Confounding factors, such as caffeine intake and the methods used to produce dehydration, need to be considered in the design and conduct of such studies. Inclusion of a positive control condition, such as alcohol intake, a hypnotic drug, or other treatments known to produce adverse changes in cognitive performance should be included in such studies. To the extent possible, efforts to blind both volunteers and investigators should be an important consideration in study design.
On the Mayo Clinic site, a Dr. Lette finds that “there’s no scientific evidence that drinking large amounts of water is good for one’s health.” The recommendation in this article is to drink when you’re thirsty, and that’s enough.
My question is, does the lack of scientific evidence mean there is no scientific proof or merely that there is no motivation to research the topic to obtain the evidencef? Who, after all, would fund research into water being fundamental to the health of the aging brain? Not the pharmaceutical industry. If you could avoid dementia by being continually hydrated, you wouldn’t need pills to fix dementia. Why would any self-respecting drug company fund that finding? And if it takes a lot of money to work through all the confounding factors, who’s going to pay for it?
The thing is, when the anecdote about my sister-in-law’s mother is not even rare, it makes me wonder how many cases of Alzheimer’s are checked for a history of dehydration. I don’t mean just the over-the-weekend kind of dehydration, but long-term, chronic shortage of water.
As with Mom. The list of things Mom was doing “right” for her aging brain is stellar: she was highly educated, spoke multiple languages, was given to prayer and meditation, was active in the community, etc., etc. Yet she succumbed to complete dementia in her early seventies! Could it all have been due to her severe distaste for water? I mean, she hated water–would gag if she drank it straight from the tap. Could her present dementia have been prevented by a regimen of 4+ cups of plain ole water daily?
I hate to look at the “what if” from Mom’s point of view, but for our generation and beyond, it needs a good deal more consideration than we’re giving it.
What do you think? Am I grasping at straws? (I suppose that’s OK as long as the straw is propped inside a nice glass of water, right?).
Water and Brain Function
Water in the Body”
You’re Not Demented, Just Dehydrated
Dehydration and Cognitive Performance
Hydration and Cognitive Function in Children
Nerve and Muscle Cells
Impaired cognitive function and mental performance in mild dehydration
Here is something frustrating about clinical trials of Alzheimer’s drugs: the FDA requires that such trials show an almost immediate improvement in memory tests of participants in order for the drug to get approval, disregarding improvement in other symptoms, and consequently derailing a possible cure for this dreaded disease.
Here is why I think there is an inherent problem with this guideline:
If you go the the Alzheimer’s Association website and take the interactive tour of a brain with Alzheimer’s (a fantastic tool!), you will notice that there is a general pattern to the progression of Alzheimer’s and its accompanying symptoms. Specifically, looking at slide 13 you will see that the first part of the brain to be affected by Alzheimer’s is the inner core where the hippocampus resides—that part of the brain responsible for short-term memory. From there, damage spreads outwards to the cortex of the various lobes. As the second image in slide 13 shows, the Frontal Cortex is affected in mid stages of Alzheimer’s. This area is responsible for attention, social skills and intelligence (or wit). It is associated with “personality.”
Now, if an effective drug for Alzheimer’s were to be developed, you would expect to see the least damaged areas respond first, followed by the most heavily damaged areas.
Such were the preliminary results of the clinical trial of Dimebon. In reading the various anecdotal accounts of the Dimebon trial (see Bob DeMarco’s piece on the Alzheimer’s Reading Room), the results seemed to show precisely this initial response: Alzheimer’s sufferers reported increased alertness, social skills, and wit. Here is a sample quote from the various testimonials:
The major drug companies are focusing on memory. Are they after the right target? I’ll tell you this, in weeks 6 through 18 in the Dimebon clinical trial my mother was more engaged with me, more aware of her surroundings, more interesting, and more like her “old” self then she had been in six years.
The least damaged areas of the brain were affected in the 12-week trial! Then the trial was stopped because the inner (most damaged) area of the brain showed no marked improvement.
Would it not make sense to glean from the trial that a logical reverse course of the disease was set in motion and to continue it to see if the pattern held?
Pfizer et al, could you give us another 12 weeks when studying Alzheimer’s please?!
[Note: this analysis is mine alone. It may not be true that the least affected areas would show improvement first]
When dealing with Parkinson’s, sometimes one symptom can dictate behavior and end up causing a cascade of physical problems.
Symptom and consequence in point: hand tremors can lead to decreased liquid consumption (because the Parkinson’s patient is embarrassed to spill every time he drinks), and decreased liquid consumption can exacerbate constipation and possibly lead to impacted bowels in a Parkinson’s victim.
In dealing with Dad, we found that one solution to this cascading problem is a spill-proof sipping container. Dad used to spill everything on himself, the table, the floor. Now when his shaking is bad, we put all liquids in the spill-proof water bottle, and he is no longer embarrassed to drink.
The nice thing about the Camelbak water bottle is it’s sleek, sporty design which makes Dad feel like he fits in more with our physically active family.
So if you are having a hard time coming up with a Father’s Day gift for your Parkinson’s dad, this is my suggestion.
Another thing I got from Oliver Sacks’ book was a new notion of the power of music in dealing with dementia. My previous post on music and Alzheimer’s dealt exclusively with the notion of music as a memory stimulant. But Sacks’ book made me realize that music can be used as a tool to organize thought and action in the present—in the midst of neurological damage.
Yesterday as I lay down for a recuperative nap, I listened to a Scarlatti sonata in the background, and immediately got a visual sense of what goes on in the brain when music is played. The first picture that came to mind was an animation of DNA transcription: that funny little zipper head that makes a perfect copy of your DNA as it unzips the double helix. Nibble, nibble, nibble, copy, copy, copy. Then I saw Scarlatti’s sonata as doing the opposite with my thoughts: grabbing all the randomness in my mind and knitting it into a useful strand, or, if you want to be more esoteric, turning it into functional narrative.
In Sacks’ The Man Who Mistook His Wife for a Hat, the first clinical case is of a man who had lost all “sense of familiarity:” he could not recognize faces, body parts, food, clothing. Sacks wondered how the man (also a music professor) could function with this neurological deficit, so he went to visit him in his own home. It turned out the man had a very musical brain, and he functioned by humming a tune as he went about his daily business. He could eat as long as he sang, but if interrupted, would no longer recognize his food and would stop eating. He could dress by the same means. His wife would set out his clothes for the day, and he would only recognize them as clothes and dress himself once he started singing! His musical brain was compensating for his lost sense of recognition.
And now I remember a funny little entry by Bob Demarco on the Alzheimer’s Reading Room that is seriously brilliant. He talks about using music to stimulate his mother into action:
My sister was shocked when I told her on the phone that I finally “convinced” my mother to drink prune juice after years of trying and failure. Joanne was here and saw my mother refusing to drink and calling the prune juice poison. It was only after I introduced the “prune juice song” that my mother starting drinking the juice every day and the dreaded Poop-E problem was solved.
I also have the pee song, the poop song, and a long list of songs soon to be number one hits.
This is exactly what Oliver Sacks would have recommended! Music and Alzheimer’s (and Parkinson’s and most other dementias): stimulating the mind into action.
- alzheimer's antipsychotics art award body-language book-review cancer caregiving causes coping cues cure death dementia diagnosis diet Dimebon disabilities drugs early-onset ego end-stages fear gadgets gut heredity humor images language lifestyle metabolism movies music parkinson's phenotype prevention progression research seniors slideshow stigma stress symptoms validation violence
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