LongTimeListener
Well-Known Member
- Joined
- Feb 25, 2009
- Messages
- 40,531
Stop citing BMI. It's a garbage figure that bears no resemblance to real life.
Why being 'overweight' actually means you live longer
Despite the fact that study after study has demonstrated quite clearly that "overweight" people live the longest, no one can bring themselves to say: "Sorry, we were wrong. A BMI between 25 and 29 is the healthiest weight of all. For those of you between 20 and 25, I say, eat more, become healthier." Who would dare say such a thing? Not anyone with tenure at a leading university, that's for sure.
In truth, this discussion should not quite stop here. For even when we get into those with a BMI greater than 30, those who truly are defined as "obese", the health dangers are greatly overestimated, mainly because of the widespread use of what I call the statistical "clumping game". Obesity researchers are world-leading experts at the clumping game. In most studies, the entire population is divided ("clumped") into four groups: underweight, normal weight, overweight and obese – obese being defined as a BMI of 30 and above. That means those with a BMI of 31 are clumped together as part of a group which includes those with a BMI of 50 – and above. What does this tell us about the health problems of having a BMI of 31? Well, absolutely nothing.
Why being 'overweight' actually means you live longer
Despite the fact that study after study has demonstrated quite clearly that "overweight" people live the longest, no one can bring themselves to say: "Sorry, we were wrong. A BMI between 25 and 29 is the healthiest weight of all. For those of you between 20 and 25, I say, eat more, become healthier." Who would dare say such a thing? Not anyone with tenure at a leading university, that's for sure.
In truth, this discussion should not quite stop here. For even when we get into those with a BMI greater than 30, those who truly are defined as "obese", the health dangers are greatly overestimated, mainly because of the widespread use of what I call the statistical "clumping game". Obesity researchers are world-leading experts at the clumping game. In most studies, the entire population is divided ("clumped") into four groups: underweight, normal weight, overweight and obese – obese being defined as a BMI of 30 and above. That means those with a BMI of 31 are clumped together as part of a group which includes those with a BMI of 50 – and above. What does this tell us about the health problems of having a BMI of 31? Well, absolutely nothing.