Poor sleep has a negative impact on the health of people over 50 years old.
This statement was published by London scientists in The Lancet Healthy Longevity.
Experts say that constant activity reduces the risk of cognitive decline as we age. But this effect may be reduced by sleep deprivation.
A large study was conducted involving 9,000 volunteers aged 50 and over. Doctors assessed people's attention and memory using tests. The work lasted for about 10 years.
The results showed that men and women who were more active throughout the day but slept less (less than 6 hours) experienced a faster decline in cognitive function. After 10 years, they were at the level of those who ignored daily physical activity.
If a person got enough sleep, his sleep lasted approximately 6-8 hours a day, then his indicators were better.
Ultimately, scientists said that it is necessary to eat right, exercise and get enough sleep to reduce the risk of dementia and other brain problems.
