Physiology is the study of how the human body works, including organs, cells, and systems.

It helps us understand how the body functions normally and what happens when we get sick.

Exercise improves heart function, strengthens muscles, boosts lung capacity, and helps regulate hormones.

Nutrition provides energy and nutrients needed for growth, repair, and proper functioning of body systems.

Sleep helps in tissue repair, memory formation, hormone balance, and maintaining overall health.