Sleep is deeper and more mysterious than I thought [Book Review]

The Science of Sleep I read a book called. I remembered seeing a famous YouTuber pick this book up, so it caught my eye when I went to the bookstore.

This book carefully explains everything from the mechanisms of sleep to its pathology. As I read through it, I felt that "sleep is much deeper than I had imagined." Since it is written from a medical perspective, the content is very reliable.

Among the contents, there was an explanation that left a very strong impression on me: the comparison of REM sleep and non-REM sleep to a computer.

REM sleep is like an offline computer that is powered off but still has various things running in the background. Even though it looks like it is resting, it is actually in a state where information is being organized and adjusted. It turns out that the time we spend dreaming also has a real purpose.

On the other hand, non-REM sleep is like an offline computer that has entered a deep hibernation state. It is a time when both the brain and body are resting deeply and focusing on recovery.

It became easier for me to understand that REM sleep and non-REM sleep are not just about being "deep" or "shallow," but are both important times with different roles.

There were quite a few technical terms, and I couldn't follow everything perfectly, but the message that "sleeping properly means properly maintaining your body" came through clearly.

Also, catching up on sleep is meaningless. And you can't sleep if you are too hungry.

To be honest, there were many difficult words for me... so I managed to finish reading it by skipping over some parts.