Why do people sleep soundly when it rains?
The reason why you sleep soundly on rainy days is that the noise of rain shields the influence of other environmental noises on you. Many people especially like listening to the rain when they sleep, because listening to the rain is just like someone telling you a bedtime story, which is particularly easy to help us fall asleep. But what you don't know is that, in scientific terms, the rain shields you from other environmental noises. In fact, the sound of rain is also an environmental noise, but we are used to it. If the door keeps ringing when you sleep, you can't sleep. Because your heart is resistant, but we can't stop the sound of rainy days, so your heart forms a natural idea, so on rainy days, your heart is particularly comfortable and easy to fall asleep.
The reason why people sleep soundly when it rains is because the oxygen content in the air is relatively low, so people's thinking activities are reduced. I don't know if my friends have this feeling, that is, whenever it rains, they feel particularly sad and depressed, and naturally they feel sleepy. In addition, the light is not particularly good in rainy days, which makes people sleepy.
Sleeping in rainy days has existed since ancient times, and it may be a gene that we humans have always had. Anyway, a good sleep is always very happy.