How much do you work out?"
"I don't," he said. "It's genetic." Which it was. Puberty had brought him many things unbidden, including height and weight and an extreme mesomorph physique, with a six-pack like a cobbled city street, and a chest like a suit of NFL armor, and biceps like basketballs, and subcutaneous fat like a Kleenex tissue. He had never messed with any of it. No diets. No weights. No gym time. If it ain't broke, don't fix it, was his attitude.

Author: Lee Child