Exercise intensity refers to how much energy is expended when exercising. Perceived intensity varies with each person. It has been found that intensity has an effect on what fuel the body uses and what kind of adaptations the body makes after exercise.
59. How does our hearts never gets tire of pumping blood throughout our body?
Because that’s how amazing God created our body. As long as we are breathing, our heart will continue pumping. It will never get tired because it is its responsibility to pumps blood throughout our body. Our heart is also like other organs in our body, All of our organs will continue doing their responsibilities as long as we are alive. Thus the only way we can help them is to stay healthy.
The answer is sexual activity.
I hope this helps!
