​The best time to sleep at night

Many people go to bed late at night. Going to bed too late is not good for oneself, especially for young people who often do this. It is easy to cause various diseases in the body. Staying up late will also lead to a decrease in one's immunity. So when is the best time to sleep at night? Many people are not clear about this. The following is a detailed introduction so that you can sleep properly at night.

Sleep time for the elderly at night:

Sleep is a normal physiological need of people, but the longer you sleep, the better. The younger you are, the lower the excitability of your cerebral cortex and the worse your tolerance to fatigue, so you need more sleep. In old age, the cerebral cortex function is not as active as that of young people, and physical activity is greatly reduced, so the sleep time required is also reduced accordingly.

Generally speaking, newborns need to sleep no less than 20 hours a day; infants and young children need about 15 hours, and school-age children need about 10 hours; adults need about 8 hours, and the elderly only need 5-6 hours.

What is said here is just an average level. The amount of sleep required by each person each day varies greatly. This is related to many factors such as a person's personality, health status, work environment, labor intensity, etc. It is also related to each person's sleeping habits.

Reasons why the elderly lack sleep

1. Physiological factors: The older you are, the less you sleep. The number of nerve cells decreases with age. Generally, the excitability of the cerebral cortex of the elderly decreases and physical activity decreases, so the amount of sleep required also decreases accordingly.

2. Organic brain diseases: The degree of cerebral arteriosclerosis in the elderly gradually worsens, or is accompanied by hypertension, cerebral hemorrhage, cerebral infarction, dementia, tremor paralysis and other diseases. The occurrence of these diseases can reduce the blood flow to the brain, cause brain metabolic disorders and produce insomnia symptoms.

3. Systemic diseases: The elderly often suffer from cardiovascular diseases, respiratory diseases, other degenerative spinal diseases, cervical spondylosis, rheumatoid arthritis, numbness of the limbs, etc. The discomfort caused by the illness may affect your sleep.

After understanding the sleep time of the elderly at night, the elderly should follow the above methods when sleeping at night, so that it will not affect their health. The elderly should also pay attention to not eat anything when sleeping at night, otherwise it will affect the quality of sleep. This is also something to pay attention to.