People should go to bed before 12 every night. Sleep for 7 hours or even 5.5 hours at night is enough. According to the data released by the Alzheimer's Association, the aging of the brain can be delayed for two years for the elderly who sleep less than seven hours a night. Long-term sleep for more than 7 hours or lack of sleep will lead to inattention and even Alzheimer's disease, thus increasing the risk of premature death.

Old people with poor sleep quality at night should form the habit of taking a lunch break, and the time should not exceed 1 hour. Otherwise, the central nervous system of the brain will deepen the inhibition, promote the relative reduction of cerebral blood flow, slow down metabolism in the body, and easily lead to discomfort after waking up, and even more drowsiness.

Extended data

Old people sleep taboo

1, don't be too full and greasy for dinner. The digestive function of the elderly is weak. If there is too much fat in dinner or supper, it will increase the burden on the stomach and lead to insomnia. Zhuang Ping suggested that the elderly can eat seven minutes full for dinner, mainly fruits and vegetables and carbohydrates, and eat less indigestible foods such as meat. In addition, the elderly should try not to eat before going to bed 1 hour.

2, avoid drinking strong tea before going to bed. Drinking tea is the habit of many old people. Tea contains caffeine, which has a refreshing effect. But drinking strong tea before going to bed will make you too excited to fall asleep.

3, avoid thinking before going to bed, emotional. If the elderly think too much before going to bed and their brains are in a state of excitement, it is difficult to fall asleep. It is best not to play chess or think about important things before going to bed 1 hour. Emotional fluctuations are also easy to cause nerve center excitement or disorder. Therefore, the elderly may wish to listen to light music in the evening, relax their brains and calm their mood.

People's Network-How long can I sleep every day to live longer? Adults sleep seven hours a day.

People's Network-What are the taboos for the elderly to sleep?