1, the mood that keeps rising.
When a person's spirit continues to be excited, sleep will naturally decrease. For example, Einstein slept only three and a half hours a day on average, but he didn't feel anything wrong with his health. It is because he has always been in high spirits, has been studying something, and has maintained a high degree of excitement.
Step 2 know how to sleep
Generally speaking, these people all know some special sleep methods, such as a 15-minute sleep method popular during World War II, that is, sleeping 15 minutes and working for 45 minutes. This is the best way to sleep in an hour, but I've tried this method and it's hard to get into the habit.
3. Time is pressing
Many successful people think that time is particularly important. They think that wasting time on sleep is a very shameful behavior, so they prefer to reduce sleep time at the expense of health and study career.