Because it’s Fall and crisp out and a good time to sit down to a good movie, I’m posting one of my favorite suggestions for a movie that deals with Alzheimer’s.
How To Kill Your Neighbor’s Dog is an unfortunate title for a great movie about self-centeredness and the cure for immaturity. The story centers around a playwright with writer’s block who must exit himself in order to find inspiration. Alzheimer’s isn’t the main theme of the movie, but it is present in the background, and the most lucidly-spoken scene in the movie is between the mother-in-law with Alzheimer’s and her brilliant, unhappy son-in-law.
Thought I’d pass it on.

I’ve had water on my mind lately (which is not the same as, but does not preclude, water on the brain).
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?).

Resources:
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

I was listening to Terry Gross interview David Linden on Fresh Air about his book The Compass of Pleasure, and something kept nagging at the back of my thinker throughout the interview. Something familiar. Something that seemed to connect with all the reading and writing I’ve done on Alzheimer’s and the brain this past year.

So I re-listened to the Fresh Air segment today, then did some quick digging through articles I’ve seen online on the brain, stirred it all around, let it simmer some more, and here is the reduction I got.

Maybe our addiction to the pursuit of happiness is contributing to brain aging. It’s not an umbrella cause, of course. You would never have been able to say that Mom led a hedonistic lifestyle. And Ronald Reagan pursued a lot more things than happiness. But still… The connection between what Dr. Linden was saying and what I’ve read makes me suspicious.

In David Linden’s Compass of Pleasure, he talks about the pleasure area of the brain as being that part that–in response to certain activities or substances–produces dopamine. Dopamine is the “feel good” neurotransmitter in the brain. It is activated when we engage in certain activities or thought processes, but it is also activated when we injest/inject food, alcohol, narcotics.

Some things that produce dopamine are completely healthy. Like a good run, the enjoyment of friends, reading a stimulating book.

Some things are borderline good. Like food. Everybody needs it. The pleasure of good food produces dopamine. But when pleasure is sought after for pleasure’s sake, “the brain’s dopaminergic circuitry gets blunted. In all cases of producing pleasure in the brain, it takes increasing levels [of a thing] to produce the same level of pleasure” (quoting Dr. L). So with food, you eventually get overweightness if the pleasure of food is pursued beyond the body’s need for it. Obesity is contributing to an epidemic of Diabetes, which is strongly linked to brain aging. By indirect means, then, the pursuit of a happy palate can lead to brain aging.

Then there are things that produce dopamine (or cause its production) that are not healthy. Like alcohol, nicotine, cocaine. This falls in with the acetaldehyde hypothesis I wrote about in Does Alzheimer’s Take Guts. Alcohol, cocaine, and especially cigarette smoke have–at some point in their metabolic breakdown–the toxic aldehyde acetaldehyde. Very destructive to the brain. Dopamine is produced as the end-process of breaking down harmful aldehydes into harmless acids. It’s the brain’s “Yahoo!” after saving the day from the bad guys. That “Yahoo!” may be a good thing, but again, in order to get it a second, third, and nth time, you have to increase the attack on the body. [Interestingly, Disulfiram's use to treat alcohol and cocaine addiction works by inhibiting ALDH2 (aldehyde dehydrogenase) which is the enzyme that metabolizes acetaldehyde. It lets the toxin do its full work rather than disabling it by metabolizing it into a harmless acid. So the brain does not get its "yahoo!" And if you get no yahoo, you don't repeat the action.]

The problem with focusing on happiness above all else is that we may end up using the short-cut and more harmful methods of getting that dopamine high.

Dr. Linden’s solution? “Try to take your pleasures broadly: exercise, meditate, learn, have moderate consumption of alcohol, moderate consumption of food.”

I would add: pursue friendships, do charitable work, tend a garden, read a good book (get more ideas at Changing Aging).

As Captain Kirk once said, “There are a million things you can have and a million things you can’t have. Choose the million you can.”

See also:
Ethanol and acetaldehyde action on central dopamine systems: mechanisms, modulation, and relationship to stress.

Age-Dependent Neurodegeneration Accompanying Memory Loss in Transgenic Mice Defective in Mitochondrial Aldehyde Dehydrogenase 2 Activity

Well, if this isn’t the best gift to buy for someone with early stages Alzheimer’s, I don’t know what is! Probably the one symptom that scares Alzheimer’s victims the most–and turns them into instant hermits–is geographic memory loss. Going out for a walk or a drive and suddenly not knowing where you are or how to get home, BAM! That’s when it’s the end of the world as we know it. So. Along comes a little MP3 player that lets you ask directions and ascertain locations when you’re out and about.
Definitely my pick for the most practical gift you can give yourself or a loved one suffering from Alzheimer’s.
What’s your pick?

One thing Parkinson’s can’t take away from a man is all he has passed on in his lifetime. Here is Dad, rock-hounding Parkinson’s style. The fact that he can’t stand up on his own or kneel and claw through the dirt to get to the jasper or petrified wood doesn’t detract from the fact that he instilled the love of nature and science in his children. It’s in our blood now to visit all the national parks we can and to dig for fossils wherever there be beds.
He’s taught his children so many good things, and Parkinson’s can’t take that away from him.

Crosby, Stills & Nash, “Teach Your Children Well”

Trying to follow Alzheimer’s research sometimes feels like walking through an Escher exhibit: the contradictions can border on the absurd.
Take the new findings on SIRT1 and its relation to Alzheimer’s. Research after research shows that SIRT1 apparently protects against Alzheimer’s:

25 July 2010. The sirtuin protein SIRT1 is emerging as an important player in learning and memory, and may have potential as a therapeutic target in Alzheimer disease. Fresh on the heels of a July 11 Nature paper that demonstrated a crucial role for SIRT1 in memory (see ARF related news story on Gao et al., 2010), two new papers add to the growing body of evidence that SIRT1 helps keep brains healthy. In a paper appearing July 21 in the Journal of Neuroscience, researchers led by Valter Longo at the University of Southern California, Los Angeles, show that a SIRT1 knockout mouse has numerous defects in learning and memory. This finding implies that SIRT1 could have a protective role in AD, and indeed, in a July 23 Cell paper, researchers led by Leonard Guarente at the Massachusetts Institute of Technology, Cambridge, report that overexpression of SIRT1 can decrease Aβ production and the number of amyloid plaques in a mouse model of AD.

You’d think, then, that more SIRT1 is better for Alzheimer’s and less is worse. But:

Michán and colleagues also examined a transgenic mouse that overexpressed SIRT1 16-fold in the brain. On this normal mouse background, the authors found that this massive SIRT1 overexpression conferred no improvements in learning or memory, and that synaptic function was unchanged except for a slight increase in neuronal excitability.

And though less is worse, vitamin B3 in the form of niacinamide has been shown to “cure” Alzheimer’s in mice by decreasing the expression of SIRT1: Nicotinamide Restores Cognition in Alzheimer’s Disease Transgenic Mice via a Mechanism Involving Sirtuin Inhibition and Selective Reduction of Thr231-PhosphotauWe evaluated the efficacy of nicotinamide, a competitive inhibitor of the sirtuins or class III NAD+-dependent HDACs in 3xTg-AD mice, and found that it restored cognitive deficits associated with pathology. Nicotinamide selectively reduces a specific phospho-species of tau (Thr231) that is associated with microtubule depolymerization, in a manner similar to inhibition of SirT1. Nicotinamide also dramatically increased acetylated -tubulin, a primary substrate of SirT2, and MAP2c, both of which are linked to increased microtubule stability. .

When asked about this contradiction, Dr. Greene, one of the researchers on this paper says,

You are correct – there are contradictions between the role of Sirt1 in AD. Regardless of these, nicotinamide has good effects in the preclinical models, and has been shown to now be effective for other neurodegenerative diseases as well. Sirt1 may be beneficial at some stages of the disease, and not others – we cannot [reconcile] these differences at this stage, but our research says that nicotinamide is highly effective in preclinical models and that inhibition of Sirt1 plays a role in these effects.

Say, what?

My mind wants to hyperventilate with the contradictions, but then I remember the story of the three blind men describing an elephant and realize the contradiction exists only because we do not yet fully understand.

And that’s what drives research onward.

RELATED POSTS:

Alzheimer’s and Glucose Metabolism: the Niacinamide Experiment Part 1

Does Alzheimer’s Take Guts? The Niacinamide Experiment Part 2

Does Alzheimer’s Take Guts? (Continuation)

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.

See also: Alzheimer’s and Music: Stimulating the Brain to Remember

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.

We already know that a Mediterranean diet helps stave off signs of dementia, but who wants to eat flavorless vegetables all the time?
If you think you have to sacrifice that deeply satisfying taste of butter and meat that you don’t typically get in a vegetable-rich diet, you don’t know Yum Sauce! This sauce is of Japanese origin and is full of protein, B-complex vitamins (B1, B3, B6, B12), and antioxidants—and best of all, it rounds out the flavor of anything you put it on with a “meatiness” that will satisfy the carnivore in you.
The dish pictured here is a prime example of a Mediterranean diet with a Japanese twist: a bed of baby spinach leaves with sauteed butternut squash, topped with Yum Sauce. Use this sauce on any steamed vegetable, over rice, or even on salad, and you’ll be on your way to fighting memory loss!

Throw everything in a blender and puree until smooth. Store in a refrigerator for up to one week.

On Saturday, August 21, 2010, God took Dad home. God did not wait until we were ready for this. He waited until Heaven couldn’t stand Dad’s absence any longer.

I’m posting this video about how we deal with death in our current culture because I think our attitude of denial in the face of death needs to change. Considering my family’s immediate reaction of trying to revive Dad–even though he requested a DNR–I’m speaking from experience. Our natural tendency is to hold on as long as possible. But this isn’t necessarily the best for those we love.

Letting go is so stinking hard!!
All the more reason to think and plan ahead for the death of those you love.

The first thing you have to know about Mom is that she is the biggest sweetheart on the planet. She has always said “yes” to anyone who asked her for a favor or a meal or a ride or even cash. We used to berate her over some of these decisions. “Mom, you’re just enabling them to go get drunk,” or whatever. We’d rather keep our boundaries intact. Keep safe. Not Mom. She’d rather “do onto others” as Jesus wanted her to do–and let Jesus take care of punishment if the recipient abused the gift.
With that in mind, it puzzles me that these days, the word most frequently pulled out of her tiny residual vocabulary (5-10 words at present) is the word “no.”

“Mom, shall we get up?”
“No.”
“Mom, isn’t this music pretty?”
“No.”
“Do you want to go for a walk?”
“No.”

Here’s the curious part. Her body language still says “yes.” So why the verbal “no”?
I’m thinking that this knee-jerk negation is her last recourse to individuality. Having lost most of what makes her a person, she is resorting to negation as a way to distinguish herself from others.
Think about it. “Yes” blends us into other people. It’s a unifying word. It accepts. It serves. It hugs and becomes one with the other.
“No” on the other hand, puts up a wall between the self and the other. It says, I am me and you are you and it’s going to stop there.
It’s Mom’s only way, I believe, to retain a feeling of self.
And that revelation changes how I look at the world. You wonder why some people just can’t play nice in the world arena; why they have to say “no” to constructive engagement; why they have to strap bombs around themselves and “no” themselves and other people into oblivion.
Perhaps it’s because those people feel that a “yes” will blend them into the will of the other–a will that is unacceptable to their idea of a healthy self. A ”no,” they feel, is the only way they’ll be seen.
Do you see what I’m saying? The ego’s boundaries collapse under yes. “No” is the last bastion of the tormented ego.

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.

I’m having a hard go at it with my new resolution to spend more quality time with my mother.

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.

Today a nice physical therapist came to assess a treatment program for Dad—to help him regain his balance and mobility and in so doing help him milk the summer ahead of us.

A couple hours later, while sitting at the table Dad asked me in an unusually clear voice, "What's the agenda?"

I looked up from the computer, slid my glasses down, and asked back, "Agenda for your physical therapy?"

"No."

"Agenda for life?" (I thought I’d go for the gusto).

"Yes." He smiled.

"Ah. Well. The agenda for life is to live more fully. You are going to get back to being more fully you. We are going to visit the local museum, go see the natural wonders around us, go to the big city to check out the OMSI exhibit."

He smiled more broadly. We're on the right track.

Shoot, this Parkinson's is going to be a nuisance, but we are going to live one shaky bite, one shuffling step, one tough lesson, one adventurous ride, one grateful day at a time.

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Thank you!
Vielen dank!
Muito obrigada!
Arigato gozaimasu!