Weight loss, it has always been a heavy topic. Some people succeed, some fail, and some are still trying. Fat friends are exchanging weight loss experience with each other, encouraging each other to cheer, there seems to be few other issues that make people so much in the same boat. In China, the premise of the population base so large, although more men than women, but according to the famous British medical journal “The Lancet” published global adult weight survey report, the number of Chinese women obese population than the number of men by several million. The human body is commonly understood to be fat in two ways: the increase in the number of fat cells and the increase in the volume of fat cells. However, the main causes of obesity vary at different ages. Before the age of 10, the number of fat cells may increase due to improper feeding or diet. 10-20 years old (adolescence) Endocrine hormones increase, too much food is eaten, making it easy to become obese. 35-50 years old (middle age) Endocrine function decreases, more food is eaten and less exercise is done, too much heat is accumulated in the body, making it easy to become fat. 50 years old and above (old age) Sex hormone function decreases, fat decomposition decreases, easy to gain weight Several stages that women need to pay attention to: puberty, this stage of the body has just begun to develop, the amount of food will also increase, if you do not pay attention to exercise, it is easy to gain weight Pregnancy, pregnant with six armor, for the health of the child, this is the time the body more tonic, but at the same time can not exercise. During menopause, estrogen starts to decrease, and the amount of activity also decreases, so it is easy to gain weight. Which girl does not love beauty? Therefore girls should be vigilant from childhood to prevent obesity, obesity will be killed in the cradle, for your healthy youth, a bright future pave the way.