I admire Chai Jing. After she left CCTV, she launched a self-financed documentary on the in-depth investigation of the haze, “Under the Dome”. The reason that prompted her to start the investigation was that her daughter, who was not born, had a tumor and underwent surgery from birth, and she realized the great danger of haze to people’s health. Haze is hazardous to health The composition of haze is very complex, including hundreds of atmospheric particles. Among them, those harmful to human health are mainly aerosol particles less than to 10 microns in diameter, such as particulate matter from urban pollution, organic aerosol particles from automobile exhaust, hydrides, sulfides, sand and dust, nitrates, etc. It can directly enter and adhere to the upper and lower respiratory tracts and lung lobes of the human body, causing rhinitis, bronchitis and other diseases, and long-term exposure to this environment can also induce lung cancer. In hazy weather, the wind is small, the air flow is slow, the air will be more bacteria, viruses and other harmful gases than usual, easy to lead to the spread of infectious diseases and a variety of diseases; air pollutants in the city is not easy to diffuse, aggravating the toxicity of sulfur dioxide, carbon monoxide, nitrogen oxides and other substances, endangering human health. Hazy weather is not conducive to skin heat dissipation, will make people appear chest tightness, breath-holding, fatigue, dizziness and other symptoms of insufficient oxygen supply, and easy to cause colds and flu, inducing hypertension, coronary heart disease, respiratory disease attacks and cerebral hemorrhage. Haze affects mental health The continuous haze weather for many days poses a threat to people’s physical and mental health. In addition to the increase in patients with influenza, bronchitis, asthma and cardiovascular diseases, some people also appear depressed, bored, even anxious and depressed, can’t take interest in anything, in a bad mood, love to lose temper with people around them, etc. Hazy weather with lower pressure, weaker light and poor visibility can easily make people appear mentally lazy and depressed. Impurities in the air can easily lead to chest tightness, breathing difficulties and other symptoms, these adverse symptoms can also affect mental health, coupled with the inconvenience of travel to bring people depressed, poor psychological quality, depression, obsessive-compulsive disorder, somatic disorders and hypochondria patients are prone to psychological problems, the lighter to depression, depression, the heavier to appear depressed, depressed mood, pessimism and anxiety, and even suicide. In the hazy days, especially patients who have suffered from depression and anxiety should maintain a scientific routine, ensure sufficient sleep, reduce outdoor activities, pay attention to more communication with friends and relatives, and increase recreational activities. Pay attention to a light diet, eat less spicy and stimulating food, eat more tofu, milk and other foods, and you can take some vitamin D supplements to ease your mood.