Why do you particularly want to sleep on rainy days?

I also found that I especially want to sleep on cloudy and rainy days. If I investigate the reasons, there must be his reasons, because I am not a professional, so I can only guess.

The first guess is that I think it is because there is no sun in the sky on cloudy and rainy days. As we all know, the sun gives people a positive feeling. When it is warmed by the sun, it will be very energetic, just like the rising sun, so it is more suitable for working or going out for a walk on a sunny day. On cloudy and rainy days, whether staying indoors or outdoors, the whole sky will become dark, and the sky will be dark. . Personally, I hate the feeling of cloudy days. Because of my melancholy feeling, I usually feel worse when I see dark colors. Of course you can't do anything energetic in this weather, so you choose to sleep. It suddenly occurred to me that the song "Cloudy Day" sung by Karen Mok is very suitable for this kind of scene "cloudy day, in a room with no light on". This time seems to be more suitable for thinking about things or sleeping quietly.

The second guess is that it is more convenient to go out for an outing and go shopping on a sunny day, but you said that it is inconvenient to go out for an umbrella on a rainy day, so everyone would rather stay at home and have nothing to do than sleep. The same is true of cloudy days. When you are outside, you will still be afraid of rain, so you must stay at home.

However, this is all my own speculation. No matter what scientific reasons can be explained, I still think that psychological factors still account for some aspects.