(1) Osteoporosis: Fat can inhibit bone loss, while muscle growth can promote bone mass increase. When fat and muscle are insufficient, bone mass will also decrease, leading to osteoporosis. Not only is strength and mobility weakened, but it is also prone to fracture.
(2) Respiratory diseases: Every breath needs to mobilize a large group of muscles. Excessive emaciation will affect muscle strength, lead to dyspnea and increase the risk of pneumonia and respiratory failure.
(3) Fertility problem: Too little fat will reduce sexual desire and form the so-called "abstinence". If women's fat content is too low, the estrogen level will also decrease, which is prone to menstrual reduction, delay or even amenorrhea, and will also affect fertility.
(4) Decreased immunity: The body is the capital of the revolution, and muscle and fat, as "storage warehouses", may face various consumptions such as diseases and trauma at any time. Thin people have insufficient "storage", recover more slowly when they are sick and injured, and the mortality rate is higher.