If someone is predisposed to a disease, they are more likely to contract the disease due to

a.

lifestyle choices

b.

heredity

c.

random chance

d.

factors other than heredity or lifestyle

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dacer so i get cardio a lot)