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Old 04-10-2015, 06:03 AM
 
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Some good news for those people who've put on weight in middle age!

Being fat in middle age reduces risk of developing dementia, researchers say - The Washington Post
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Old 04-10-2015, 07:00 AM
 
Location: in the miseries
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Overweight and obese are two different things.

The underweight probably aren't getting enough nutrition.
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Old 04-10-2015, 07:12 AM
 
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This is fine but being fat will reduce your life span. How many really fat older people do you see?
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Old 04-10-2015, 10:01 AM
 
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There was a PBS special, last year, very interesting about brain plaque, exercising eating habits etc.,. It was/still is a study of about 15,000 people followed from Leisure World over 20-30 years. ( I believe that long) Anyway... of the results, one of the things they found was that carrying an extra 10-15lbs., (approx.) was actually healthier. Yes, not obese, just the bit of extra.
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Old 04-10-2015, 10:38 AM
 
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I've emailed this to several friends.
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Old 04-10-2015, 10:47 PM
 
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Default See the abstract in Lancet.

Here is a link to the actual study. Sorry, only the abstract is free.
http://www.thelancet.com/journals/la...033-9/abstract

Here is a quote with numbers from the abstract:

"
Our cohort of 1 958 191 people from UK general practices had a median age at baseline of 55 years (IQR 4566) and a median follow-up of 91 years (IQR 63126). Dementia occurred in 45 507 people, at a rate of 24 cases per 1000 person-years. Compared with people of a healthy weight, underweight people (BMI <20 kg/m2) had a 34% higher (95% CI 2938) risk of dementia. Furthermore, the incidence of dementia continued to fall for every increasing BMI category, with very obese people (BMI >40 kg/m2) having a 29% lower (95% CI 2236) dementia risk than people of a healthy weight. These patterns persisted throughout two decades of follow-up, after adjustment for potential confounders and allowance for the J-shape association of BMI with mortality.
"

What they call underweight is a BMI of 20 or less gets a 34% risk increase.
At 6 feet tall, that would be 147 pounds.
At 5'6", that would be a weight of 124 pounds
Whoa, that's skinny for a guy. On my frame that's near zero body fat.

For the other end, a BMI of 40 gives the 29% risk reduction.
a person 6 feet tall would weigh 295 pounds
and 5'6" tall would weigh 248 pounds


Anyway, what is interesting is that beneficial effect (less dementia) increases steadily with BMI, so you don't have to have to get 40 BMI obese to benefit.

Notice that they are accounting for the, "J-shape association of BMI with mortality."
This means that the very fat don't get senile dementia as often because they are already dead.

For the numbers they gave, 2.4 cases in 1000 person years, being obese lowered that by 29%, so now we're talking about 1.7 per 1000 person years. I think I would shoot for being slightly overweight for a 10% dementia risk reduction instead of obese and a great increase in diabetes and worse.
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Old 04-11-2015, 11:20 AM
 
Location: Central IL
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Hmmmm...could it be that the weight at which dementia is lowest may NOT be the weight that is optimal for physical health? We really, really, REALLY want things to be simple, but biology and physiology are NOT. So pick which one you'd rather, or find something in the middle to split the difference.

There is seldom if ever a single best answer and you'll drive yourself crazy trying to find it.
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Old 04-11-2015, 12:28 PM
 
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Maybe one's appetite decreases when mental capacity declines.
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Old 04-11-2015, 01:58 PM
 
Location: in the miseries
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Quote:
Originally Posted by yourown2feet View Post
Maybe one's appetite decreases when mental capacity declines.
Seems true.
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Old 04-11-2015, 03:52 PM
 
Location: Approximately 50 miles from Missoula MT/38 yrs full time after 4 yrs part time
2,297 posts, read 3,345,130 times
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Quote:
Originally Posted by MadManofBethesda View Post
Some good news for those people who've put on weight in middle age!

Being fat in middle age reduces risk of developing dementia, researchers say - The Washington Post
............So the question that arises as one enters "the twilight years" may be as simple as:.............................

Do you want to be "fat" and "sharp as a tack"....OR....."slim and trim" and "not know your ass from your elbow?"
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