The impact of staying up late on health is extremely serious. Research shows that if a person sleeps less than 6 hours a day, it will have a significant impact on health. If one continues to stay up late for four days, the probability of death can reach as high as 80%. Furthermore, if one continues to ignore the body's warnings, by the third day, the body's condition will deteriorate to its peak, and the likelihood of complications will increase.

Generally, adults need about 7 to 9 hours of sleep per day, although this may vary depending on age, physiological condition, and individual differences. Lack of adequate sleep can lead to decreased attention and concentration, affecting performance at work, school, and daily activities. Additionally, insufficient sleep weakens the immune system, increases the risk of infection, and can lead to emotional instability, causing anxiety, depression, and irritability. There is also an increased risk of various health problems such as cardiovascular diseases, obesity, and diabetes. Moreover, inadequate sleep affects brain function, including memory, learning ability, and cognitive function.

In summary, maintaining sufficient sleep is crucial for maintaining overall health, especially for children and the elderly. Therefore, it is essential to prioritize and ensure an adequate amount of sleep every day.