How to start a healthy morning routine — and stick with it
https://edition.cnn.com/2021/08/24/health/morning-routine-healthy-tips-wellness/index.html
Younger people tend to look down on sleeping hours. And, if there is no obligation to wake up early in the morning, they try to sleep until noon. But, that kind of habit won't be good for their brains to work properly.
It should be taught in school education.