Scientists told why you need to sleep at least 7 hours a day

(ORDO NEWS) — A person must sleep at least 7 hours a day. Sleeping less can cause serious brain problems. An interesting fact is that in old age, an excess of sleep leads to the fact that a person becomes more inhibited and begins to forget a lot.

This is reported by Mail Online.

Experts from Stanford University reaffirmed that a night’s sleep should last at least 7 hours, especially if a person is already in old age. In this way, the health of the brain can be maintained. Not getting enough sleep leads to the fact that cognitive functions begin to deteriorate gradually, and the risk of developing dangerous plaques increases significantly. Ultimately, this can lead to the development of dementia.

During the study, it was found that people who slept little have a weak memory and are slow to respond to what is happening, although there is a sufficient amount of beta-amyloid proteins in the brain. Experts analyzed the brain function of 4,500 people, whose average age was 71 years.

The experts also noted that too much sleep in old age can trigger other health problems. For example, a depressive state may begin to develop.


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