Maybe your hormones are acting up or puberty?
Answer:
b) uterus.................
False because only if you smoke then yeah
Answer:
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.
