Lung cancer is a very common disease. The occurrence of lung cancer is related to many factors – genetic factors, smoking factors, environmental factors and air pollution. Hazy weather can trigger lung cancer, especially prolonged heavy haze. We cannot decide the external factors, but we can start from ourselves to minimize the impact of haze on health. Diet: eat more vegetables and fruits and drink more water. In life: to exercise regularly, exercise can enhance the body’s immunity. But exercise should be time, place and method. Try not to do outdoor exercise in hazy weather. When the weather is clear, it is recommended to do outdoor activities after 9:00 to minimize the absorption of harmful substances. Go out for outdoor activities with an anti-haze mask. This can minimize the damage to health from haze.