Answer:
30 is considered a single cycle
She watched the Olympics and she could learn how to play and then try it.
Stress is "your body´s way of responding to any kind of demand". It might be cause by good or bad experiences. it might be caused for many reasons: physical reason such as fear, or emotional like family or job. So it could be said that a person height might not influence stress because it has to do with something biological, a human conditions and not an external factor. <span />
I am pretty sure the answer is yes, they do.