The hot summer is fading away, and the autumn breeze brings us a burst of coolness. With the autumn breeze comes dry air, a wide temperature difference between day and night, and the ripening of fruits. When enjoying the joy of harvest, do not harvest respiratory diseases at the same time. People with chronic respiratory diseases have the experience that whenever the weather becomes cooler, it is the time when the disease is likely to recur, especially for patients suffering from chronic bronchitis with emphysema or pulmonary heart disease. The dry weather enhances the activity of respiratory viruses, the wind is stronger in autumn and the human respiratory tract is relatively dry, especially the nasal mucosa, which is not conducive to the normal functioning of the nasal cavity, and with the blowing of the autumn wind, viruses are easily generated by breathing into the body. In addition, after a hot, hot summer, the weather suddenly turns cool, people are easy to be cool, and the temperature difference between morning and evening in autumn gradually increases, some elderly and frail people with chronic respiratory diseases are more likely to induce respiratory diseases or aggravate the original disease due to a decline in resistance. Autumn is the harvest season, the maturity of various agricultural products, so that the air allergens increased, farmers in the work, especially easy to breathe these allergens into the body, can directly trigger allergies. How to avoid the above problems? Pay attention to more moisture, add clothes in time, avoid getting cold, especially patients with existing respiratory diseases, pay more attention to protection when the temperature drops, avoid going out when the wind is strong, you can wear a mask when you must go out. Farmers should pay attention to respiratory protection when working, if the processing of moldy crops more attention to protection, so as not to inhale mold resulting in respiratory tract mold infection. You can also eat more fresh vegetables, fruits and honey, and less spicy food. Finally, I wish everyone to enjoy the joy of the autumn harvest and stay away from disease!