Answer: HPE is a multidisciplinary subject because all the contents related to humans, human health and sound environment come under this subject.
Explanation: In education or academia health, population and environment have different origins but when combined together make a multidisciplinary subject.
Your heart rate should drop to about 120 beats per minute within five minutes after the workout and less than 100 beats per minute after ten minutes.
Mina because she doesn't interrupt and gives good suggestions.