Weight loss could be intentional, including with dieting and exercising or unintentional and be a manifestation of sickness. Weight decrease can outcome from a decrease in physique fluid, muscle mass, or fat. A decrease in physique fluid can come from medicines, fluid decrease, need of fluid intake, or illnesses including diabetes. A decline in physique fat could be intentionally initiated by exercising and dieting, including for obesity. Weight decrease is usual after pregnancy. The decrease of weight and need of nutrition affiliated having a chronic sickness is known as cachexia. Unexplained, unintentional heaviness decrease is normally a outcome of sickness and should be assessed by a healthcare experienced.