Question

Maintaining physical activities for a longer period, brings desirous changes in circulatory system. Justify your answer by highlighting three benefits of exercise. 

Answer 1

1. The cardiovascular system improves 

2. Chemical composition of blood improves 

3. New capillaries are formed 

4. Reduction in cardiac problem 

5. Decrease in blood viscosity (density) 

6. Resting pulse increase 

7. Return of normal pulse quickly 

8. Faster adaptation to working load 

9. Size of the heart increases