In the human context, energy refers to the capacity the body has to perform physical and mental activities. The primary source of human energy is the food we consume. Food is metabolized in the body through the digestive process, where nutrients are converted into energy. This energy is then used for bodily functions such as maintaining body temperature, supporting organ functions, and powering physical and mental work.
Human energy levels are influenced by factors such as diet quality, hydration, regular physical activity and adequate sleep. Balanced nutrition, which includes carbohydrates, proteins and fats, plays a central role in maintaining energy levels. A healthy lifestyle that includes regular exercise and adequate rest is also key to optimizing the body's energy use and supporting overall wellbeing.
