“Spring sleepy, fall tired, summer snooze”, the weather is hot, will make people drowsy, many people have the habit of napping. Whether or not to “nap” in the middle of the day has long been a big controversy. Part of the people think that napping is completely unnecessary. And another part of the people think: “noon does not sleep, afternoon crash”, nap is an important rest period of the day, the body to recharge. So should you nap or not? We talk to you. In the 1980s it was proven that people have sleep rhythms. A person who is awake, mentally focused and attentive lasts up to 4 hours, after which he or she feels sleepy. And the most sleepy time for people is the early morning and afternoon. Napping is a form of rest that has definite benefits for the human body. First of all, napping eliminates sleepiness and makes memory better. Even a 10-minute nap in the middle of the day is much more effective in eliminating sleepiness than an extra two hours of sleep at night. Mednick, a psychologist at Harvard University, et al. published a study in the journal NatureNeuroscience in 2003 concluding that daytime naps can promote sleep-dependent memory just as much as nighttime sleep. So, napping can help you enhance your memory. Secondly, napping can regulate your mood and relieve stress. Taking a nap in the afternoon can improve your mood and reduce tension in the body, especially stress relief is as effective as a full 8 hours of sleep at night, and your mood may be much more relaxed. For patients with poor physical condition, recent colds and other patients, also need to take a proper nap to replenish energy and increase the body’s immunity. The most important point, nap can reduce the incidence of cardiovascular system diseases. A European sleep study selected more than 20,000 people found that: nap and coronary heart disease mortality rate reduction has a great correlation, especially in the work of people, especially men are very obvious. The results of a medical study in Spain further proved this point: a daily nap of 30 minutes, the body’s hormone secretion is more balanced, the incidence of cardiovascular system diseases can also be reduced by 30%. In addition, napping has the effect of reducing blood pressure. How exactly should I take a nap? The best nap is more than 8 hours away from the night sleep, which will not lead to insomnia in the night. In addition, do not eat immediately after the nap, so as to increase the burden on the gastrointestinal tract, we recommend that half an hour or so after the meal nap. The nap time must not be too long, generally recommended 20 minutes to half an hour is appropriate. More than 2 hours of nap, will affect the human sleep rhythm, affect the night sleep, the body is not very good. Especially for patients with high blood pressure and diabetes, napping for too long can cause blood pressure and blood sugar to rise. Long naps will make you feel “more sleep, more tired”. Part of the serious insomnia, or do not need to nap in the afternoon also full of energy of the special people, do not need to nap. As for the sleeping position, if possible, or try to lie down to sleep, now in the Internet can buy folding lunch bed, not very much space, but to ensure that you lie down to nap. The last thing we recommend is to sleep in a hunched position, which makes you more tired and affects the health of your spine. For the sake of your health, it is recommended that you “nap” according to your own situation.