Chronic stress builds up over time.
Answer:
D
Explanation:
The white blood cells in you are the guards of the body. They help fight infections that they dont recongize. They also can break down bacteria.
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.
1, and 2 are the answer and by one and 2 I mean the first 2 statements