Summaries from 2 important articles
It probably won't shock you to learn that larger waists mean greater heart disease risk. Where the extra pounds lie may make a difference. Larger waists, or an "apple" shape, indicate abdominal fat. Fat around the hips and thighs is often described as a "pear" shape. Studies have linked abdominal fat to more health problems, including increased risk of diabetes and breast cancer. Now, scientists have pinpointed the exact numbers to watch out for: Men: 35 or below, Women: 33 or below. Read more here.
A man's waist size seems to be a strong indicator of adult onset diabetes risk. Johns Hopkins scientists reviewed data from 27,270 men tracked over 13 years Compared to those with the smallest waists, 29-34 inches, men with larger waist sizes were at least twice as likely to have diabetes. Those with the largest waist size -- 40 inches and above -- were up to 12 times more likely to have Type 2 (adult onset) diabetes, the kind associated with obesity. Read more here.