Depends: The body is a finely tuned machine that adapts to meet changing needs. To meet body/muscle demands during exercise, the heart rate increases. Anxiety often increases the heart rate too. Breathing will increase deeper & faster. Even at normal heart rates, lack of oxygen is not a good thing, but a teen has stronger heart cells can tolerate less oxygen for a longer period than a much older person.
Answered 8/4/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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