```X-Message-Number: 27627
Date: Thu, 16 Feb 2006 23:54:05 -0700
From: Mike Perry < var s1 = "mike"; var s2 = "alcor.org"; var s3 = s1 + "@" + s2; document.write("<a href='mailto:" + s3 + "'>" + s3 + "</a>"); >
Subject: Morbidity Estimates and Calorie Restriction
References: < var s1 = "20060216100002.22920.qmail"; var s2 = "rho.pair.com"; var s3 = s1 + "@" + s2; document.write("<a href='mailto:" + s3 + "'>" + s3 + "</a>"); >

Buried in Doug Skrecky's interesting posting, "Prognostic Index for 4-year

>body mass index <25,
>1 point),

As it happens, my yesterday's newspaper had an article based on this very
work, in which you could estimate your own chances of living for 5 or more
years. (The article was "Quiz can help give clues to mortality" by Lindsay
Tanner, AP.) To compute the body mass index (BMI), you use the formula
703w/h^2, where w=your weight in pounds and h=your height in inches. "The
1-point penalty for having a body-mass index under 25 (normal body weight
or less) is based on findings that being underweight is a health risk for
elderly people." The article states also that there was no similar penalty
for being overweight because bad effects associated with obesity, such as
diabetes, were included under other headings. Anyway, I bring this up
because I come out as underweight by this criterion (height 71", weight
about 130 lbs, BMI about 18), which effect is enhanced by the calorie
restriction I have been practicing for over 7 years now. I'm wondering if
CR, even with adequate nutrition, has been overrated or actually
misrepresented as a life-extender in humans, notwithstanding its positive
effects in shorter-lived creatures such as mice.

Mike Perry

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