Explanation:
D)difficulty staying awake is normal seeing
A persons ability to transport oxygen to the body.
When you are exercising, you're blood pressure is elevated. When you are finished exercising, it will recede to near it's normal state. Exercise doesn't have as much of an affect as weight does, but I guess all these things are all kind of inter-related. The more physically fit you are, the lower your blood pressure, in general.
