Experts say that the regimen mentioned in Huangdi Neijing should be synchronized with the rhythm of nature. As the saying goes, "work at sunrise and rest at sunset", and the time of sleep is closely related to the time of darkness. In spring and summer, it gets dark late and dawn early, which was originally suitable for staying up late and getting up early. Healthy people don't feel tired even if they sleep for six or seven hours every day as long as they don't stay up late according to the weather. But in winter, it gets dark early and it gets bright late, which is most suitable for "going to bed early and getting up late", so many people feel that it is not enough without sleeping for eight or nine hours.
"As we all know, the dawn in winter is very late and the temperature is very low. Considering all aspects of health, people don't recommend getting up too early, let alone going out for activities too early. This is also an adaptation to the weather. " Experts say that winter is the best time to sleep at night 1 1 and get up at 7-8 in the morning, which is not only enough time, but also in line with the law of natural interest. Sleeping before midnight is good for nourishing yin. At this time, I will only get up at seven or eight o'clock, just as the temperature outside is rising and the sun is shining. Activities are also better at this time. For middle-aged and elderly people, it can even reduce some hearts and brains.
However, experts say that although "staying in bed properly and staying up late" is beneficial to health care, there are still differences. "Many people will find that even if they sleep for 8 hours, they go to bed at 0: 00 in the morning, get up at 10 in the morning, and go to bed at 10 in the evening and get up at 6: 00 in the morning, which is a far cry. Some studies even say that such a gap may reach 1.5 times. " She also said that the quality of sleep is more important than midnight from the perspective of Chinese and western medicine, especially the "golden sleep time" is between 1 1 and 2 am the next day.
In fact, our human body has some natural rhythms. For example, the secretion of hormones will follow time. Sleep will not only affect, but also affect sleep in turn. For example, many people can be very tired at ten o'clock in the evening and then go to bed, which is not only conducive to the secretion of hormones such as melatonin, but also brings a better sleep experience. But if you miss this time period, the levels of other excitatory hormones in your body will rise in the early morning, and you will have to toss for a while before you can sleep. People like to call it "walking sleepy", which belongs to the "sleep rhythm" in modern medicine. Keeping a good sleep rhythm is as important as keeping enough sleep time.
In fact, there is no harm in "taking a nap" in winter, but if you get up early and "be stupid" for a day, it means that this person must have some sleep problems. "Good sleep means that you should be energetic and happy during the day, and you should not be affected at any time.