Puberty, and there are many websites and books that offer information so you know what to expect.
Answer:
Your pineal gland. Its responsible for producing melatonin, a hormone that helps regulate sleep and wakefulness.
Answer:
use dictionary to find out meanings and also take help from TB material
It could be to avoid injuries. One reason why there are several rules in
exercising is to ensure that a person will not get injured during a
workout. Injuries can occur when one is
either handling too much weight, doing the exercise wrong, not using proper
equipment or does not have a partner or trainer assisting him.
