There are a number of different disorders that lead to being too thin. For example, anorexia and bulimia are common eating disorders that lead to losing dangerous amounts of weight. In order to achieve a thin physique, individuals who suffer from these conditions will deprive themselves of nutrients essential to the body. Even though these individuals are able to lose large amounts of weight, they are risking their health in the process.
Other individuals suffer from other health conditions that lead to losing too much weight. People who have cancer, AIDS, or some other type of disease can lose large amounts of weight. Sometimes this cannot be avoided, but it does complicate their health issues.
When an individual does not have enough fat and muscle, the body does not function properly. The body needs some stored fat to produce energy. If the individual does not have any fat, it can negatively impact the energy production systems of the body.
Another potential problem with being too thin is that it makes the individual weak and susceptible to injury. When a person does not have any muscle or fat surrounding her joints and bones, she could easily be injured by the slightest unnatural movement. If one of these individuals attempt to play sports or engage in physical exercise, she could potentially break a bone or experience other injuries. By building up muscle, an individual can more effectively prevent injury and keep herself from getting seriously hurt.