If a person’s energy intake exceeds their output, they gain body weight. A person loses weight if their energy intake is less than their output. Balancing energy intake with output maintains a ...

Free body diagrams do not need to be drawn to scale but it can sometimes be useful if they are. It is important to label each arrow to show the magnitude of the force it represents. The type of ...

In general, the energy to synthesize ATP molecules must be obtained from rather complex fuel molecules. The human body uses three types of molecules to yield the necessary energy to drive ATP ...

The carbohydrates, proteins, and fats in food provide calories to fuel exercise and energize your body. Contrary to myth, vitamins and minerals do not themselves provide any energy. (They are ...