tag:blogger.com,1999:blog-2981197052686065994.post577441434573621124..comments2023-10-01T04:36:19.806-07:00Comments on medicine: facts and fictions: BMI, Overweight, and LongevityUnknownnoreply@blogger.comBlogger3125tag:blogger.com,1999:blog-2981197052686065994.post-3846711294019264912013-02-26T05:23:53.216-08:002013-02-26T05:23:53.216-08:00There is almost no data on body fat percentages, w...There is almost no data on body fat percentages, which would require detailed measurements of the body. As I have indicated, the BMI is a surrogate measurement of body fat, and it overestimates it for taller and for more muscular people.george thomashttps://www.blogger.com/profile/14810516710667919032noreply@blogger.comtag:blogger.com,1999:blog-2981197052686065994.post-54672253360580094212013-02-22T08:29:24.858-08:002013-02-22T08:29:24.858-08:00I, too, have a BMI of 27, so your blog post provi...I, too, have a BMI of 27, so your blog post provides some comfort from knowing that my weight is apparently not deleterious to my health. As for those BMI statistics from other countries, I suspect that if one were to remove people under the age of 50 from the calculations, the average BMI's for each country would increase.<br /><br />I walk regularly, jog and lift weights so my BMI may be misleading. Are there any good statistics for longevity and body fat percentage, or overall health benefits from various ranges of body fat percentages? <br /><br />Roy KAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2981197052686065994.post-57947377646479588542013-01-04T06:01:26.749-08:002013-01-04T06:01:26.749-08:00I just want to re-emphasize that the BMI is a surr...I just want to re-emphasize that the BMI is a surrogate number to guesstimate the total body fat without actually measuring it by immersing the body in a pool of water. The number says nothing about the distribution (apple-shaped vs. pear-shaped) distribution of total body fat, or about yellow vs. brown fat, or about the muscle-to-fat ratio. And again, the taller or the more muscular you are, the more the BMI overestimates your total body fat, so that the IBW calculated from the BMI and height in tall people is too low, and the taller you are compared to average body height, the greater the error in the calculated Ideal Body Weight.george thomashttps://www.blogger.com/profile/14810516710667919032noreply@blogger.com