Answer:
exercise and eating healthy, nutritious foods
In terms of a diet= human bodies need fat to function and get rid of feces. Externally it is used to lubricate the skin preventing tears, and damaged hair/skin/nails. Generally speaking
Water regulater body temperature through perspiration because when your body is overheating, you begin to sweat as a way to cool off.
Dual Energy X-ray Absorptiometry (Dexa)