Men's summer fitness is regular, but there are many misunderstandings. This reminds male friends who love sports to pay more attention to their fitness. Myth: Exercise sweats well under high temperature to lose weight. Some teenagers like to engage in outdoor sports in the sunshine. By doing so, they can sweat deeply and achieve the effect of losing weight, but it will cause harm to the body. It is easy to sweat excessively and cause dehydration, heatstroke and so on. Serious exercise can cause syncope. In addition, from 11 a.m. to 4 p.m. in summer, when the sun is strongest, the sun can burn people's skin. Myth 2: The body needs to release heat and the capillaries of the skin expand immediately after the body-building. If you take a cold bath at this time, the skin will be subjected to super-cold stimulation, capillaries suddenly contracted, on the contrary, it is not conducive to heat emission. Too much heat and too much cold stimulation of the skin, will also make the expansion of the pore closed urgently, the human body's immunity will decline, the bacteria are most vulnerable to invasion at this time. Many people know that after a lot of sweating, they need to replenish water immediately, but it is easy to replenish excessive water. Because, after a large amount of exercise, all organs and systems of the human body need rest, and at this time, a large amount of water will add a heavy burden to the digestive, blood circulation and other systems, especially the heart. At the same time, after a lot of sweating, mineral water supplementation can make up for the loss of trace elements with sweat. If you drink plenty of pure water, it will only aggravate the loss of minerals in the human body, and easily cause cramps, spasms and other symptoms. Myth No. 4 Frozen Beverage is beneficial for cooling and heat dissipation after intense exercise, a large amount of blood flows to the moving muscles and body surface, while the digestive organs are in a relatively anemic state. Drinking frozen drinks at this time will bring strong stimulation to the stomach and easily induce anorexia, acute gastritis and other diseases.