It is found that constant room temperature is of great significance to health. Zhang, a professor of health care at Beijing University of Chinese Medicine, told reporters that the room temperature around 20℃ is the most comfortable. This temperature is conducive to the body to emit excess heat. If the room temperature exceeds 25℃, the human body will begin to absorb heat from the outside and feel the heat.

If the room temperature exceeds 35℃, the sweat glands of the human body will start, and the body will emit heat through sweating, resulting in uncomfortable feelings such as accelerated heartbeat, accelerated blood circulation, dizziness and fatigue. On the contrary, when the temperature is 8℃~ 18℃, the human body will radiate heat; When the room temperature is below 4℃, you will feel cold.

At the same time, 20℃ is also the best sleeping temperature. When the room temperature is above 24℃, sleep will become shallow, and the number of body movements and waking turns (waking turns) will increase during sleep. Sleep temperature is below 18℃, so it is not easy to enter deep sleep.

Expand data humidity and light brightness

A study by the Department of Health, Environment and Medicine of Nagoya University found that the frequent occurrence of influenza is closely related to the low air humidity. Guangsheng Song, director of the National Indoor Interior Environment and Indoor Environmental Protection Product Quality Supervision and Inspection Center, said that when the indoor air humidity is lower than 40%, dust, bacteria, etc. can easily attach to mucous membranes, irritate the throat, cause cough, and easily induce respiratory diseases such as bronchitis and asthma.

Excessive humidity is harmful to health, and people may feel nausea, loss of appetite, irritability, fatigue and dizziness. A study by the University of Otago in New Zealand found that living in a damp and moldy room also increases the risk of allergic diseases such as asthma and eczema. In high humidity environment, mold and so on are also easier to breed.

Too many lamps and lanterns in the room are too bright, which not only wastes resources, but also causes great stimulation to the eyeball and easily causes emotional irritability. The function of each space in the home is different, and the requirements for light intensity are different.

Generally speaking, the brightness of living room, study room, dining room and other spaces is stronger than that of bedroom and kitchen, which is more in line with the law of human work and rest. Indoor light should be kept as soft and uniform as possible, without glare and shadow. The brightness of the adjustable light source should be controlled between 60% and 80%, and the maximum brightness should not exceed 90%.

People's Network-Meeting at six o'clock is a good bedroom, and 20℃ is the best sleeping temperature.