If you skip the cool-down portion of exercise,

Blood can go into the exercised parts of the body and lessen the return of blood to the heart.

it would be a lot of diff ones. hope this ! < 3 : )

teens need 8-10 hours of sleep. it kind of depends on what time you get up. but prob around 10 or 11 p.m. or 11 or 11: 30 p.m.