Thick Thighs Decrease Heart Disease Risk Researchers suggest beefing up skinny legs with exercise By Kevin Spak, Newser Staff Posted Sep 4, 2009 11:17 AM CDT 12 comments Comments Skinnier thighs may look better in jeans, but they could increase your risk of heart disease. (Shutterstock) (Newser) – Take off the skinny jeans and beef up those thighs, or you could be bound for an early grave. People whose thighs had a circumference less than 23.6 inches were more likely to suffer from heart disease and premature death than those with more sizable gams, according to a new study. It’s the first research of its kind, and it could lead to a thigh-size test to determine heart risk, the Independent reports. But the researchers note that after thighs crossed the 23.6-inch threshold, it didn’t matter how big they were; the risk remained constant for those just above 23.6 inches and the thunder-thighed alike. Researchers say they’re worried, however, because half of the men and women they examined fell below the threshold. They recommend beefing up those thighs with exercise.