<span>DETERIORATE. With aging, heart does not reamin the very efficient pacemaker. The arteries gets deposited with fats, fibrous tissue develops in them, which leads in slowing down of heart. Further, size of heart increases, which leads to more time in filling up of heart. The muscle cells of the heart also deteriorate. Thus, cardiorespiratory fitness deteriorates. </span>
That is true because the mucus will build up and not drain down the eustachian tube
C. You cannot prevent muscle mass loss as you age, however you can slow the rate of muscle loss, and even increase muscle mass in some instances.
Answer:
A) taking a prescription painkiller to cause a "high"
Explanation:
since the painkiller is prescribed, misusing it in this way would be inappropriate and would be considered an example of a drug misuse.
