Answer:
C
Explanation:
they need balance to stay on track
True because the arteries are like the extension cord of the heart so they have to add extra pressure.
Hope this helps
Answer:
It depends. If cheering up impedes our personal progress, than we should seek to improve first. But cheering up can be helpful at times when depression impedes progress/normal functioning. It is generally healthier to be cheerful than to be gloomy and depressed.
Explanation:
