The hazards are as follows:
First, it is not good for breathing and sleep quality.
How does it feel to blow a fan into your nostrils when you sleep? By the way, people's breathing will slow down and weaken when they sleep, and a slightly stronger wind will affect their exhalation, which will also affect their breathing and sleep quality.
Second, create opportunities for microorganisms to invade the human body
When people sleep, their metabolism slows down, their reactions weaken and their immunity declines. But when the wind in the window is a little stronger, they will bring in a lot of microorganisms, and there is no barrier in the window.
Extended data:
The change of light when facing the window will also affect the quality of sleep. Sleeping without pointing your feet at the window is a summary of human experience and has scientific basis.
Taboo before going to bed:
First, avoid using your brain before going to bed.
If you have the habit of working and studying at night, do something that requires your brain first, and then do something more relaxed, so that you can relax and fall asleep easily. Otherwise, if the brain is in an excited state, it is difficult to fall asleep even when lying in bed, and it is easy to form insomnia after a long time.
Second, avoid eating before going to bed.
When people go to sleep, the activity rhythm of some parts of the body begins to slow down and enter a state of rest. If you eat before going to bed, the gastrointestinal, liver, spleen and other organs will be busy again, which will not only increase your burden, but also make other organs not get enough rest.
The functional area of the cerebral cortex responsible for the digestive system will also be excited and often have nightmares after falling asleep. If you eat dinner too early and feel hungry before going to bed, you can eat less snacks or fruits (such as bananas and apples), but you should rest for at least half an hour before going to bed after eating.
Reference source: Baidu Encyclopedia-Sleep