The brain ages due to lack of sleep and those people who don't get enough sleep suffer more often from dementia, Alzheimer's and other diseases related to memory.
These data were obtained from research by Singaporean scientists, who have reached the conclusion that sleep has a direct influence on brain activity.
The extensive study continued for 2 years and investigated the sleep habits of a group of volunteers, with an MRI used to monitor their sleep.
It turned out that the brain activity of volunteers who slept less decreased, which was a clear indicator of its aging.
According to scientists, a healthy amount of sleep is between a period of 6 to 8 hours. The experts don't exclude age as a factor for lack of sleep, since it has been proven in other studies that with age, people need ever less sleep.
A group of British scientists add that if you eat feta cheese before bed, you won't have any nightmares.
"The link between feta cheese and sleep is quite complex and we cannot determine the exact relation between the consumption of the product and nightmares, " stated professor Ian Hindmarch from the British research team in front of the Daily Mail.
According to researchers from Middlesex University, the amino acid in feta cheese - tryptophan, has a positive effect on mood and sleep.
The lack of sleep leads to severe problems in the human body, including a number of cardiovascular and cerebrovascular diseases, problems with metabolism, sugar diabetes and obesity, as well as various eye diseases.
American ophthalmologists have proven that unstable and insufficient sleep causes blurry vision and discomfort in the eyes.
The US scientists also establish that lack of sleep leads to glaucoma - the second most common cause for the development of irreversible blindness.
Insomnia, on the other hand, can lead to ischemic optic neuropathy - blood vessel ruin of the optic nerve, characterized by the sudden painful loss of vision in one eye.