Stress affects the musculoskeletal system of the body which causes the body to naturally tense up as a defence mechanism.
<u>EXPLANATION:</u>
Stress is not good for the body and its various systems. Stress in fact leads to several health issues. When stress affects the musculoskeletal system, the muscles, joints and tissues stay continually tensed.
This in turn leads to chronic pain in the neck and back. This chronic pain in the neck and back needs to be treated else a person may become bed-ridden for several days.
During exercise, an individual's heart rate tends to increase steadily until a level of consistent intensity has been reached. Correct answer:C Afterwards the heart rate decreases back to normal.
As a result of increased exercisethe volume of blood pumped by the heart increases
