If you don't get enough sleep for a long time, on the one hand, you are prone to accidents, such as fatigue driving, which will lead to car accidents. On the other hand, it may have an impact on work, and excessive fatigue during work may lead to mistakes.
In addition, health issues are more important. If you don't get enough sleep, it may weaken the anti-infection ability of the immune system and increase the risk of obesity and heart disease. If you don't get enough sleep, you may feel tired and stressed, and have no interest in all kinds of activities you used to like. Therefore, to ensure adequate sleep, it is not enough to sleep four hours a day.