According to the University of Rochester Medical Center, fat cells are located throughout the human body between the skin and muscle areas. They can also be found surrounding the organs inside of the body’s cavities such as the abdominal area.
The main purpose of the fat cells inside of the human body is to store excess energy obtain from food. They are also used to protect vital organs and nerve tissues. Once a person’s body uses all of the energy obtain from regular food intake, then it begins to use the energy source inside of these cells. If a person is eating more food than she can burn off, then the fat cells may start to look enlarge, which may cause weight gain.