I’m pretty sure it’s 87% if I can remember from science
The human body contains trillions of cells. each organ belongs to one of 10 human body systems, these body systems are interconnected and dependent upon one another to function your heart does not beat unless your brain and nervous system tell it to do so your skeletal system relies on the nutrients it gains from your digestive system to build strong and healthy bones
The overload principle
Explanation:
The overload principle is the most basic of all physical activity principles. It says that doing "more than normal" is necessary if benefits are to occur.
