Abstract
I am a baby boomer, and my body-mass index (BMI) is 27.3. I am also an epidemiologist, so for both personal and professional reasons, I have closely followed the sometimes divergent conclusions about the health risks associated with growing older and being a little overweight. As reported in this issue of the Journal, trials involving more than half a million Americans (Adams et al., pages 763–778) and more than a million Koreans (Jee et al., pages 779–787) are the latest in a series of cohort studies published in recent years on the risks associated with excess adiposity. Now that studies . . .

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