The impact of obesity is in line with previous research on this matter.  But the previous studies never expressed it in years of life lost/bmi. So seeying now that being overweight is a positive for blacks and only costs 2 years/life for whites is odd/less bad than I expected it to be. (Overweight (25-29.9) is 82% indicator for type 2) Is developping type 2 a tool from the body to cope with the overeating?  Does it help stabilize the health in the overweight range? Do you only break your system going full obeast? Or is it because of the 18% healthy outliers in the overweight bmi range? Anyone with a medical background to pitch in?