A few things one it depends on the gender of a person using it, this can lead to a hormone imbalance in the person.
Answer:
Subtract your heart's resting rate from your maximum rate. For example, if you are 40 years old, subtract that number from 220; your maximum rate is 180. Next, subtract your resting rate or 80 in this example. Your heart-rate reserve is 100 beats per minute.
Answer:
Estrogen makes you grow faster than testosterone.
Answer:
Benefits of Exercise on the Respiratory System. Exercise does the body good in a number of ways, but one of which is the benefit to the respiratory system.
Explanation:
respiratory system