A growth hormone in the human body, referred to as HGH, it is a natural hormone secretion by human choice, the main role is to promote the growth of bone and muscle, but will also accelerate the burning of body fat. HGH secretion only sleep at night is about to fall asleep "inverse sleep" after 90 minutes when the secretion of the most productive. . Our daily calorie intake is far beyond our body consumes calories, more nutrients over time, the formation of fat fat, low basal metabolic rate of the body itself, the heat can not be timely consumption, can easily result in a vicious cycle of obesity. In fact heat the combustion with each tissue growth, more than 70% are in the resting state, especially in sleep. 2, lack of sleep, you will reduce the physical. Lack of sleep can cause your lack of energy, so that you do not want to move more.   Sleep duration and body weight are positively correlated, especially among young people. This positive correlation with increasing age may gradually subside. Deprived of sleep will reduce by 18% the secretion of leptin, a 28% increase in growth hormone secretion, leading to an increased hunger and appetite. Sleep produce leptin The sleep diet is medical evidence to show that an effective way to lose weight, sleep time and sleep quality affect the secretion of the hormone to break down fat to make it burn, promote the metabolism and elimination of edema, stimulation of growth hormone to guide the body fat into energy, so that those who love to sleep but not on a diet of thin MM preserve their slim secret. A lack of sleep will increase your fat stores. When you go into a deep sleep, your brain will release a lot of growth hormone, this hormone instructs your body to break down fat and release energy. But if you absorb the excess calories, while a lack of deep sleep, then you lack sufficient growth hormone to break down these fats. So, your body will take such a shortcut, excess fat piled on your hips, thighs and abdomen. Second, the lack of sleep is to lose weight biggest enemy Recent study found that a person during sleep, the body releases chemicals called leptin, the substance can prompt people to eat, in order to control the amount of fat. The experts also pointed out that lack of sleep may affect the secretion of hormones to help burn calories during the day, lack of sleep can affect leptin secretion, which is not difficult to see sleep weight loss is an effective way to lose weight. A sleep in the body to release leptin