if you want a knee-jerk reaction: a scruffy chin, nice brown eyes and a nice ass
but seriously, the human body is incredible. despite it's frailty, it can adapt to it's surroundings, heal itself and is capable of feats of unbelievable power and grace.
i have to admit it bothers me when i see people destroying their bodies by lack of exercise, shitty food, drugs (cigarettes included) and alcohol. if you don't take care of it, you don't deserve it.