Why do you feel sleepy on rainy days
4hw.com.cn: I believe everyone has had this feeling. It's a good match for sleeping on a rainy day. Lying in bed on a rainy day and listening to the rain outside the window will make people feel very quiet. Then why are you sleepy on a rainy day? In fact, this is not your subjective feeling, but also has many objective reasons. Let's have a look.
The first reason is white noise. When it rains, the signal frequency of the rain sound is relatively consistent. For the human brain, the rain sound becomes the background noise, also known as white noise. This noise can cover up other noises, and the noise generated by the rain sound is relatively small, which can make us sleep well.
Physiologically speaking, the light in rainy days is relatively dim and the temperature is low, which is particularly easy to cause melatonin in the human body and lead to sleepiness. From the perspective of psychology, human beings have a collective subconscious and a sense of fear of darkness, so they trigger a desire for security, and sleeping in a warm quilt can just let us get a sense of security. Therefore, it is excusable to want to sleep on rainy days.
When it rains, the color will become dark and gloomy. The human body will make corresponding endocrine regulation according to the environment, such as the production of melatonin, which will make people sleepy. There is also the problem of genetics. In ancient times, we all lived by farming. We certainly couldn't work any more on rainy days. At that time, there were no entertainment items, so we had to sleep at home. This behavior has been inherited for thousands of years.
The environment in rainy days will make people feel very comfortable and give people a sense of comfort, so they will relax all over. Moreover, it will be cool when it rains. Under such dual factors, it will be easier to sleep.
Before the rain comes, the weather will become a little muggy. The muggy weather means that the oxygen content in the air is reduced. If people can't breathe enough oxygen, it will lead to insufficient oxygen supply in the brain, so it is easy to feel like sleeping.
So it's really comfortable to sleep on rainy days.