True with out sleep you would not be able to re gain energy you need to stay awake and alert
An athlete's arousal level refers to
D. the "mind-set" of the athlete in reference to competition and intensity of the exercise or sport.
Your heart is very important. the reason your heart is important because the heart keeps blood that's full of oxygen circulating through your body. the heart is also needed for survival, without one you would be alive today. The heart also sends blood around the body. The blood provides the oxygen and nutrients which is needed.
Answer:
Personal Safety us an individual's ability to go about their everyday life free from the threat or fear of psychological, emotional, or physical harm from others.