The quadrennial World Cup is an event that fans can’t afford to miss. The opening match of the World Cup in Russia has already started, and many fans are eagerly waiting to see the world-class superstars. But because of the five-hour time difference, we have to stay up late to watch the game. Now the question arises, is staying up late to watch football harmful to the body? Staying up late is a very bad behavioral habit, of course, occasionally, timely supplemental sleep, the impact on the body is not great. But if you stay up too long, the hazards are as follows: 1, prone to heart disease, because the human body’s biological clock is not affected by the light, the clock. Especially like the heart and other organs, if long-term “black and white”, will make the risk of heart disease increased. 2, affecting the immune system, often in the late night, fatigue, mental instability, the body’s immunity will follow the decline in colds, gastrointestinal infections, allergies and other symptoms of autonomic nervous disorders will not be met. 3, prone to obesity, stay up late if the diet, not only will it be difficult to sleep, but also make the next morning appetite, so caused by nutritional imbalance, will cause obesity. 4, prone to gastrointestinal diseases, staying up late is easy to hunger, diet during this period is easy to cause stomach cancer. When sleeping at night, the late-night snacks eaten for a long time stagnant in the stomach, can promote the large secretion of gastric juice, the gastric mucosa caused by stimulation, over time, easy to lead to gastric mucosal erosion, ulcers. 5, cause memory loss, the sympathetic nerves of those who stay up late at night excitation, in the daytime there will be no spirit, dizziness, memory loss, inattention, slow reaction, forgetfulness and dizziness, headache and other problems. Over time, it will cause memory under. There will even be neurasthenia, insomnia and other problems. 6, cause deafness, lack of sleep easily make blood vessels in a state of tension, resulting in insufficient blood supply to the inner ear, the hearing has a very strong killing power, long-term continued to stay up late will likely lead to deafness. 7, skin damage, staying up late is easy to cause endocrine disorders, will make the skin appear dry, poor elasticity, dull, lack of luster and other problems; also easy to make the skin appear acne, acne, chloasma, dark spots and other problems.