In winter, humidity is healthy
The drying of the northern winter is well known.
This year, the Beijing Municipal Government has strengthened the management of winter heating. The temperature in the homes of many people has increased compared with previous years, and the degree of dryness in the rooms has been worse than in previous years.
In particular, a few snows in the early winter of this year, it feels like the board is moister than the room.
Be aware that humidity is the key to winter health.
A 30-year study by Professor Sudo Chihiro, who specializes in health environmental medical research in Japan, shows that the incidence of influenza, asthma, atopic dermatitis, emphysema, etc., and human immunity in the environment where people have been living in humidity for a long time since childhoodThe decline is related.
銆€銆€In winter, your main concern may be that the temperature in your home is not enough.
However, you may notice that the room with too high temperature is not very comfortable, which is why the humidity you usually don’t pay much attention to is too low.
Thermometers are available in almost every household, but there are not many families with humidity meters.
銆€銆€Do you know that the human body’s suitable healthy humidity is 45% RH?
65% RH, while the indoor humidity during the winter heating period is usually 15% RH.
In such a dry environment, people will have various discomforts.
銆€銆€First of all: in a dry environment, the resistance of the human respiratory system is reduced, which easily causes or aggravates the respiratory diseases.
Studies have shown that when the air humidity is lower than 40%, the ciliary movement on the nasal and pulmonary respiratory mucosa is slowed down, dust, bacteria, etc. are easily attached to the mucous membrane, irritating the throat to cause cough, and other respiratory tracts are also prone to occur.disease.
銆€銆€In addition, when the air humidity is low, the flu virus and the Gram-positive bacteria that cause infection are accelerated, and it is easy to transfer the dust in the air to spread and cause disease.
銆€銆€In addition, allergic diseases such as atopic dermatitis, bronchial discomfort, and skin itching are also associated with air dryness.
銆€銆€Air drying previously had an impact on recent health and adversely affected the body’s immunity.
Japanese expert Sudo Chiharu’s research found that in Japan 1961?
The incidence of allergic diseases increased by 33% in the 30 years of 1991.
This phenomenon is related to people living in an environment with increased humidity from a young age, and eventually leads to a decline in the body’s immunity.