I guess its medical, if not, philosophical
The emotional changes cause they might affect you
Answer:
B
Explanation:
Low-fat or fat free dairy product greatly helps in reducing the chance of getting osteoporosis and if you want to fully prevent it, you can use cardiovascular exercises like dancing, walking, jogging, running, yoga, water aerobics, tai chi, ect.
(hope that answers your question :D)
Answer: Because some of the teens are always on their electronics and are too lazy to exercise.
