What is the purpose of digestion in the human body?

The purpose of digestion in the human body is primarily to break down food into usable energy. This process involves several stages, starting from the mechanical breakdown of food in the mouth, followed by chemical digestion in the stomach and intestines, where enzymes and acids break down complex molecules into simpler forms. These simpler substances, such as nutrients and energy-rich compounds, are then absorbed into the bloodstream to be utilized by the body for growth, repair, and various metabolic processes.

Digestion is essential for converting the food we consume into energy that our cells can use. Without this process, the body would not be able to obtain the necessary nutrients and energy required for daily functions and overall health.