In fact, a six-minute nap is enough.

As the saying goes, "I don't sleep at noon and collapse in the afternoon", for many friends, I have to take a break at noon and have mental work in the afternoon, but taking a nap is like a "metaphysical event". Sometimes I feel refreshed after waking up, and sometimes I feel dizzy after sleeping, and my head feels as heavy as lead. Today, let's talk about why some people get worse after a nap. Why does the state get worse after a nap? 01 Taking a long nap Some studies have shown that taking a nap for 6 minutes can improve memory. When you close your eyes for about 5 minutes, the Beta brainwave that makes people concentrate will decrease, while the Alpha brainwave that has relaxing effect will gradually increase and become the dominant brainwave, which will enable us to recover our energy quickly. Taking a nap for 10-30 minutes at noon will obviously improve the sense of fatigue and drowsiness, and also improve the reaction speed and alertness. However, once you take a nap for more than 30 minutes, you may enter a deep sleep. At this time, your brain will produce sleep inertia, which will make you more reluctant to get up. Even if you are finally woken up by an alarm clock, your brain will not be able to "turn on" completely. At this point, the brain seems to be locked, and the speed of information processing slows down, making us feel groggy. Once sleep inertia is turned on, this state will even last for half an hour to an hour.02 I feel heavy after taking a nap too late or too early, or it may be the wrong time to take a nap. On the one hand, it is too late to take a nap, such as going to bed at three or four o'clock in the afternoon, which easily affects the sleep at night, leading to the disorder of biological clock and making the day more drowsy. In addition, the nap time should not be too early, because a lot of food will accumulate in the stomach after lunch, and falling asleep at this time is not conducive to full digestion of food. If the food is not digested in the afternoon, the stomach and intestines will divide some blood supply to continue digestion, which will affect the blood supply to the brain and make people feel sleepy easily. It's best to wait until about 20 minutes after dinner before taking a nap. I suggest you take a walk after dinner and go to bed later. If you can't walk, it's also a good choice to stand at the table for a while.Sleeping in a wrong position on the table can easily lead to discomfort after waking up, because when sleeping on the table, the muscles of the neck will be fully relaxed and the protection of the cervical joints will be weakened, and at this time, we often twist our heads to one side, which is likely to lead to dislocation of the cervical spine, which may cause neck pain in the long run, and dizziness and other symptoms may occur if the nerves are compressed.How to take a scientific nap? Seeing this, some friends may ask, how to sleep during a nap? In addition to avoiding the above three wrong behaviors, here are three more ways to teach you: Don't eat too much greasy food before going to bed, and don't overeat, because greasy will increase blood viscosity and increase the risk of coronary artery disease. Overfullness will increase the burden of stomach digestion, and sleeping after eating for a long time will easily induce various stomach diseases. At the same time, it will also cause food to consume too little calories, which will turn into fat accumulation in the body, leading to obesity. Lying flat on the sofa or lounge chair is the first choice for taking a nap. It is suggested that you choose a sofa, lounge chair or folding bed to sleep as much as possible. If conditions do not permit, you can sit in an office chair, put a U-shaped pillow on your neck, close your eyes and squint for a while. In addition, in order to avoid being notified by the mobile phone to interrupt the sleep cycle, you may wish to set the mobile phone to do not disturb mode in advance. How to take a scientific nap? Seeing this, some friends may ask, how to sleep during a nap? In addition to avoiding the above three wrong behaviors, here are three more ways to teach you: Don't eat too much greasy food before going to bed, and don't overeat, because greasy will increase blood viscosity and increase the risk of coronary artery disease. Overfullness will increase the burden of stomach digestion, and sleeping after eating for a long time will easily induce various stomach diseases. At the same time, it will also cause food to consume too little calories, which will turn into fat accumulation in the body, leading to obesity. Lying flat on the sofa or lounge chair is the first choice for taking a nap. It is suggested that you choose a sofa, lounge chair or folding bed to sleep as much as possible. If conditions do not permit, you can sit in an office chair, put a U-shaped pillow on your neck, close your eyes and squint for a while. In addition, in order to avoid being notified by the mobile phone to interrupt the sleep cycle, you may wish to set the mobile phone to do not disturb mode in advance.

Close your eyes to rest your brain. After you start a nap, you can close your eyes and let nature take its course. Some people may fall asleep soon, but some friends may find it difficult to fall asleep and feel anxious. However, even if we can't sleep, it doesn't matter, because when we close our eyes, our brain has entered a rest mode. Even if we don't go to sleep, the brain will automatically adjust to the state of "inner feeling", which will make us pay less attention to the outside world and turn to the body itself. At this time, the rest-related "ventral medial prefrontal cortex" and other areas in the brain will be more active, which will help us shield external information and reduce the burden on the brain.