Short Waistline Long Lifeline.

As a good rule of thumb: for optimal health and longevity, a man
should not have more than one-half inch of skin that he can pinch
near his umbilicus (belly button) and a woman should not have
more than one inch. Almost any fat on the body over this minimum
is a health risk. If you have gained even as little as ten pounds since
the age of eighteen or twenty, then you could be at significant increased
risk for health problems such as heart disease, high blood
pressure, and diabetes.