“Obesity is the source of all diseases”, it not only affects the beauty of the body, bring great inconvenience to life, more importantly, is easy to cause a variety of complications, accelerate aging and death. No wonder some people say obesity is the harbinger of disease, the signal of aging. At present, obesity has become the fourth largest medical social problems, experts have warned that obesity has become a global epidemic, and the human body systems caused great harm: harm a: cardiovascular system obesity on the cardiovascular system is the most harmful. Obese people are prone to hypertension, because obese people’s blood vessel wall is easy to have fat accumulation, and outside the blood vessel is also surrounded by fat compression, resulting in greater resistance to blood flow, blood vessels are less smooth, the elasticity of the blood vessel wall becomes poor, and eventually lead to hypertension. In addition, obese people have higher serum insulin level, which will promote the increase of sodium reabsorption and sympathetic nervous tension increase and thus induce hypertension. Obese patients because the body is overweight so that the blood circulation demand increases, cardiac output increases, so there is no doubt to increase the burden on the heart; at the same time the heart itself also has more fat deposits inside and outside, easy to lead to myocardial strain, and eventually lead to left heart failure. Harm two: respiratory system Obesity endangers the breathing of people. When a person’s weight increases, the lungs must transport more oxygen to supply the body needs, however, the lungs will not be correspondingly larger because of the increase in human weight. In addition, the fat in the lower abdomen can limit the breathing activity of the lungs. Obese patients often appear sleep apnea syndrome, manifested as pulmonary hypertension and hypoxemia, which is very likely to cause respiratory failure and heart failure or even life-threatening. Hazard three: endocrine system Obesity can promote the occurrence of hyperlipidemia and diabetes, diabetes to the cardiovascular system caused by atherosclerosis and microvascular lesions. Arterial cherry can cause coronary heart disease, cerebrovascular disease; cardiac microangiopathy can cause extensive myocardial necrosis, cardiac arrhythmia, heart failure, and even cardiogenic shock and sudden death. Diabetic nephropathy is mainly glomerular microangiopathy, renal arteriosclerosis and acute and chronic pyelonephritis. Retinopathy of diabetes is the main cause of blindness in diabetic patients. Hazard four: urinary system Obese patients are often accompanied by other metabolic diseases. Such as renal changes often for glomerular filtration rate and renal blood flow increase, glomerular hypertrophy. 1974 Weisinger first reported a case of severe obese patients combined with nephrotic proteinuria, from then on, people only put obesity and glomerular hypertrophy and focal segmental glomerulosclerosis-related nephropathy (ORG). Overweight, easy to hurt the kidney, because the two causes of kidney disease diabetes and hypertension are related to obesity. Harm five: reproductive system Obese patients often have obesity reproductive incompetence syndrome or obesity reproductive organ degeneration disease. Reproductive hormones are easily dissolved in fat, and reproductive hormones are dissolved and stored in excess body fat after they are produced. Obese men have low blood testosterone and high estrogen (more than one times higher than normal men). The reason is that the increase of body fat can make androgens more into estrogen, and the latter inhibits the secretion of pituitary gonadotropin, which in turn reduces the secretion of testosterone, which can make the man’s masculinity sharply reduced, and the sexual function is reduced to different degrees. Male obese patients mostly have impotence or oligospermia exist. Female obese people generally have low libido, the reason is also related to the low level of androgens in the body. In addition, obesity has a significant impact on ovarian function, manifesting as abnormal follicular development patched disorder and dysplasia. Obese women often have menstrual disorders, including irregular bleeding, amenorrhea, and infertility are very common. Sometimes accompanied by polycystic ovary syndrome and so on. Hazard six: digestive system Fat tends to attach or gather in the liver can cause fatty liver, which in turn causes liver cell necrosis and leads to cirrhosis. Triglyceride solubility increases, cholesterol increases with the occurrence of gallbladder disease. Many obese people do not want to eat food containing more fiber, only love to eat meat, eggs, sugar, due to the lack of food fiber, lack of stimulation of the digestive tract, so that intestinal peristalsis is weakened, the number of bowel movements is less to form constipation. This habit will make the remaining food stays in the intestine for a long time, and even the formation of abnormal fermentation corruption, corruption of feces to stimulate vasoconstriction of toxic substances, which is harmful to health. Long-term constipation is prone to colorectal cancer and other anorectal diseases. Harm 7: Movement system As the whole body weight is supported by the lower limbs, an overweight body will cause wear and tear on the lumbar and knee joints, worsening degenerative arthritis. The overweight body will also give the back and back muscles, ligaments, tendons and other excessive tension force, thus leading to back and back pain, over time will form chronic back pain. Hazard eight: the nervous system obesity more prone to metabolic diseases such as diabetes, can involve the peripheral nerves appear extremities have foreign body sensation such as numbness, pins and needles, burning, stepping cotton feeling. Then lead to muscle strength reduction, muscle atrophy, muscle weakness and even paralysis. In addition, obesity and cancer are closely related, according to relevant statistics, the incidence and mortality rate of anorectal cancer, prostate cancer in male obese patients and gallbladder, cervical, endometrial, ovarian and breast cancers in female patients have increased. The reason is that most of the carcinogenic substances in food are fat-soluble and can be absorbed into the body with fat digestion, thus increasing the chance of cancer.