What is the question here? He is encountering peer pressure
For preventing stds use a condom birth control or abstinence
Answer:
calisthenics is the word you're looking for
Cholesterol (especially LDL*) tend to get into macrophages which migrate into blood vessels. Macrophages with cholesterol cannot get out of the vessels and stay there which causes a lipid mass in arteries. That causes atherosclerosis.
The importance of physical activities can help you get motivated, stress relief, and even help with your immune system.
