People get Chicken pox just by contact. It is a contagious disease in other words, an air borne disease.
Explanation:
A warmup gradually revs up your cardiovascular system by raising your body temperature and increasing blood flow to your muscles. Warming up may also help reduce muscle soreness and lessen your risk of injury. Cooling down after your workout allows for a gradual recovery of preexercise heart rate and blood pressure.
A graph that is the answer OK .