Men and women with thighs over 23.6in in circumference have a lower risk of heart disease and early death, a study of 3,000 people suggests.
The relationship remains even when body fat, smoking and blood cholesterol are taken into account, a Danish team says.
Those with narrow thighs may not have enough muscle mass to deal with insulin properly, raising the risk of diabetes and, in turn, heart disease, they say.
Experts cautioned that the research needed corroborating.
Disclaimer: I have no idea who this woman is. She seems to have a good self image since she feels comfortable wearing a bathing suit and she is smiling. But maybe she is smiling because she is eating. One never knows.