Spring drowsiness and autumn weariness, taking a nap in the afternoon is good for mental health, but the duration of the nap can be specific. Recently, the topic of "napping for more than an hour increases the risk of death by 30%" has become a hot topic on the internet. Is this statement reliable or not? Expert reminder: Do not take out of context. The research conclusion is based on an epidemiological observation study published in 2019. Through tracking and analyzing long-term sleep habits and health data of a large population, the study concluded the association between nap time and health risks. However, many netizens pointed out after reviewing the original text that this research conclusion has strict prerequisites and is not applicable to all populations. In online communication, the relevant statements directly omit key limiting conditions and only extract the conclusion that "napping for more than one hour increases the risk of death by 30%" for dissemination, leading to one-sided and absolute interpretation of information and causing unnecessary health anxiety among many citizens. Experts emphasize that the relevant conclusions are not absolute, and the "30% increase in all-cause mortality risk" is the statistical result of a group of long-term, habitual oversleeping. Occasionally sleeping too long does not require excessive panic. The key to a healthy nap lies in "moderation, regularity, and adaptability to individual conditions", and there is no need to be intimidated by a single data. Why does taking a nap for more than an hour increase health risks? Experts say that the relationship between prolonged napping and increased health risks is not simply a "causal relationship", but rather a complex phenomenon of mutual correlation - excessive napping has the greatest impact on the cardiovascular system, such as waking up after a deep sleep for more than an hour and experiencing a sudden increase in blood pressure and heart rate. People who take long-term naps use excessive napping to cover up their lack of sleep at night, which can increase health risks. Long term napping can also have a certain impact on biological rhythms. How long is suitable for different groups of people to sleep in the afternoon? The duration and method of nap time should also vary for people with different sleep conditions and physical conditions. Expert advice - For people who get enough sleep at night (7-9 hours): take a 15-20 minute nap every day. People who sleep less than 6 hours at night: can nap for 30 minutes a day, not exceeding 45 minutes. Insomnia patients who sleep less than 15 minutes at night: In order to improve the driving force of nighttime sleep, nap time is controlled at 15 minutes and ends before 3 pm, or closed eyes can be used as a substitute for rest. Patients with hypertension and diabetes: The nap time should be strictly controlled within 20 minutes, so as to reduce the risk of blood pressure fluctuation and metabolism. Experts remind: Do not lie on the table during a nap, do not go to bed immediately after a meal, and slowly get up after waking up from a nap, which is more beneficial to your health. (Looking into the New Era)