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:
ball hit into the net, may still be kept in play (up to 3 hits) provided that a player does not make contact with the net. Players may not touch the net. If 2 opposing players touch the net simultaneously, the ball is declared dead and is replayed
Answer:
1: Weight Management
2: bone and muscle health
3: relief from physical pains
4: protection against health conditions
5: younger healthier skin