People who stay up late may often hear the advice that “the body will not be able to bear it if you stay up late”. But staying up late does not mean lack of sleep. If you go to bed late and wake up late, will it be harmless to your health? Is it healthier than going to bed early but sleeping less?
Studies have shown that lack of sleep can increase the risk of Alzheimer’s disease, increase calorie intake leading to fat accumulation, decreased immunity and metabolic changes, and increase the risk of chronic diseases. Going to bed late not only leads to problems such as daytime sleepiness and fatigue, but also puts people in a state of stress for a long time, mainly manifested as impatience, tension, anxiety, and even biological clock disorders, poor sleep quality or insomnia caused by late going to bed. These problems will in turn lead to a decline in human immunity, metabolic disorders, and increased risks of metabolic diseases, mental diseases, and cancer.
In fact, even if sufficient sleep time can be guaranteed, going to bed late is still very harmful to the body. Studies have shown that people who go to bed late have a higher risk of diabetes, gastrointestinal disorders, nervous system diseases and other diseases than those who go to bed early, and those who go to bed late have a 10% higher risk of premature death than those who go to bed early. Even with complete autonomic blockade, heart rate can vary at different times of the day. This means that sleep or lack of sleep is “opposed” to normal heart function.
In daily life, it is inevitable that people will occasionally go to bed late and suffer from insomnia, and some people have formed a bad habit of going to bed late for a long time. But as long as the biological clock is adjusted in time, its harm can be reduced.
It should be emphasized that infants and young children should sleep at least 12 hours, teenagers should sleep 8 to 10 hours, and adults should sleep at least 7 hours.