The higher the relative humidity in a city, does it mean that the humidity in this city is heavier? If it is winter, what effect will it have on people?

Relative humidity is the percentage of actual water vapor content (absolute humidity) and saturated humidity (maximum possible water vapor content) at the same temperature. It is only a relative number, which does not represent the absolute humidity in the air. ?

In winter, the climate is unusually dry. Keeping indoor relative humidity can prevent colds. According to the survey, in the northern area 120 heating days, only 2.5 days reached the healthy humidity. Another study shows that indoor air pollution is 5- 10 times that of outdoor air, so many people lack moist and clean air in winter.

Extended data:

Effect of relative humidity:

In dry winter, the incidence of diphtheria, influenza, whooping cough, meningitis, asthma and bronchitis is very high. Significantly increased, there are many reasons for these diseases. In addition to the low temperature and large temperature difference in winter, the human body's resistance declines, and there are two reasons as follows:

First, the relative humidity of the environment is low, which accelerates the reproduction of influenza virus and pathogenic Gram-positive bacteria, and spreads with dust, resulting in the epidemic of diseases.

Secondly, low relative humidity will reduce the resistance of human respiratory system and induce and aggravate respiratory diseases.