Sleep twice a day for 4 hours at a time, is it okay to sleep like this?

Not good! Because there is a process for human beings to fall asleep, it is divided into four stages, only when it reaches the fourth stage is deep sleep, which can make the whole body get the best rest, but the first three stages of light sleep take a long time, about three or four hours, if you follow your friend's sleep method, the body is simply not able to get a good rest, and just like the computer restarts repeatedly will damage the hard disk, the human organ just wakes it up when it is about to fall asleep, and it will also damage the normal function of the organ and the physiological cycle. So don't sleep like this!

If he had been in good spirits the next day and had no discomfort, I don't think there would have been any problem.

Sleeping four hours a day is a long-term lack of sleep, which has a certain impact on the body, may affect the normal development of the body, brain thinking, etc., and may also induce diseases, such as upper respiratory tract infection, neurasthenia, etc.

1. Affect the normal development of the body.

Generally, the human body secretes ghrelin during sleep, and secretes less ghrelin in non-sleep. If the patient has a long-term lack of sleep, it will affect the normal development of the body.

2. Affect the brain's thinking.

For some people, long-term sleep deprivation may also affect the brain's thinking clarity and brain responsiveness, and it is easy to have inattention, dizziness, memory loss, etc., and some patients may also have headache symptoms.

3. Induce disease.

Lack of sleep will reduce the body's immunity, and it is also prone to anxiety and other bad emotions, which may induce diseases such as upper respiratory tract infections and neurasthenia, and even increase the risk of heart disease, diabetes and other diseases, which need to be paid attention to.

In addition to the above, long-term sleep deprivation may also increase melanin production, affecting metabolism. It is recommended to develop good sleep habits and ensure adequate sleep time to reduce the impact on health and quality of life.

Sleeping 4 hours is harmful to the body, 8 hours of sleep is the normal sleep time, but the sleep time varies from person to person, usually adults over 18 years old, 6-8 hours of sleep is the normal sleep duration. If you wake up after 8 hours without feeling tired, you can increase the sleep time appropriately, but not too long. The average sleep time of each adult is hours, each person's sleep cycle includes two stages of deep sleep and light sleep, it usually takes about 30 minutes to enter the deep sleep stage after falling asleep, deep sleep and light sleep are alternated in the daily sleep process, usually need 4 cycles to ensure that the brain gets a better rest.

Each cycle alternates between deep sleep and light sleep, so 6-8 hours of sleep per day is a normal sleep duration for each adult. If you can ensure 6-8 hours of sleep every day, you can ensure that the brain is fully rested during sleep, improve daily metabolism, and prepare enough physical and mental power for the next day's work and life. Ensuring that the body has a certain amount of sleep can maintain a stable physiological cycle and normal operation, so as to ensure that people's physiological functions have a good internal environment and help have a healthy body.