Generally speaking, the suitable healthy temperature for human body is 18℃ ~ 25℃, and the healthy humidity is 40% ~ 70%. In this environment, the human body feels most comfortable. When the temperature is between 24℃ and 30℃ and the humidity is less than 60%, the human body feels hot but not stuffy. When the temperature is higher than 30℃ and the humidity is 70%, the human body feels sultry; When the temperature is higher than 36℃ and the humidity is higher than 80%, the human body feels severe sultry, the sweating mechanism is blocked, and it is easy to suffer from heatstroke due to the accumulation of a large amount of residual heat in the body; My mood will also be very irritable, I will make mistakes easily at work, and the incidence of various industrial accidents will also increase. And cold is also a big "killer" of human health. Every time the cold wave comes, the number of outpatients and inpatients in the hospital will suddenly increase, and the mortality rate will also rise. According to the survey, the number of deaths in 65438+February is the highest in all months of the year, accounting for 10.4% of the total number of deaths.
So what diseases will the change of temperature and humidity lead to? Traditional Chinese medicine calls "wind, cold, heat, dampness, dryness and fire" six qi. In fact, these six gases are the reflection of airflow, temperature and humidity. When the six qi suddenly changes or the human body's resistance and adaptability decrease, the six qi becomes the pathogenic factor. It is windy in spring, hot in midsummer, humid in late summer and early autumn, dry in late autumn and cold in winter. Many diseases are closely related to temperature and humidity, especially low humidity. Modern medicine has found that the average life span of bacteria is the shortest under the relative humidity of 45% ~ 55%, and the life span of bacteria will be prolonged if the humidity is too high or too low. When the air humidity is 35%, the cilia on the nasal and pulmonary respiratory mucosa move slowly, and dust, bacteria and so on are easy to attach to the mucosa, which irritates the throat and causes respiratory diseases such as cough. When the air humidity is low, the reproduction speed of influenza virus and gram-positive bacteria that can cause infection will also be accelerated, and they are easy to spread and cause diseases. In addition, allergic dermatitis, asthma, skin itching and other diseases are also related to air dryness.
For women, air humidity is also closely related to skin condition. Women who have been in a dry environment for a long time will gradually lose their elasticity and luster due to lack of water, thus accelerating the aging of the stratum corneum. In addition, high temperature, heat, cold and dryness can also lead to water imbalance.
If the air is too dry, it will not only cause various diseases, but also adversely affect daily life. If the furniture is deformed, cracked or damaged, especially the wooden floor, it will crack and tilt. In addition, the static phenomenon caused by drying will also endanger human health. Therefore, we must pay attention to the change of temperature and humidity and pay attention to the hydration in dry environment. If the indoor air humidity is very low and people feel uncomfortable, we must take humidification measures and adjust it with humidifier, dehumidifier and ventilator to ensure environmental comfort and human health. When it is too hot in summer or too cold in winter, we should also pay attention to heatstroke prevention and cooling, wind protection and warmth, and do a good job of health protection, so as not to give the disease an opportunity.