A. because even though it is not ideal to ever be stressed out to the point of it inflicting your heart. It is common for athletes do that to condition there hearth and lungs to function at the highest of extremes possible.
I would say blood glucose(blood sugar)
Explanation:
I am diabetic, so endocrinology is my thing. the pancreas releases insulin
Answer:
Jumping jacks, running around a track, stretching
Things like that
<3
Explanation:
It is tempting to sleep late on weekends, especially if you have had poor sleep during the week. However, if you suffer from insomnia you should get up at the same time every day in order to train your body to wake at a consistent time. Eliminate alcohol and stimulants like nicotine and caffeine.