Answer:
Target heart rate is defined as the minimum number of heartbeats in a given amount of time in order to reach the level of exertion necessary for cardiovascular fitness, specific to a person's age, gender, or physical fitness.
C it is fema because tgey are the ones who help in emergncy
Reading, listening music thing like that can help you a lot or talk with people that can help you
It can when you turn your head a certain way or when you chew food.
Yoga it relaxes the whole body