Scientists have shown that lack of sleep is dangerous for the human capacity for work, than drunkenness.
It is noted that most of all to reduce the performance impact is not health or spirits, and not even previously consumed alcohol, and banal lack of sleep.
Researchers found that even in a hangover state people are more employable than after a sleepless night.
According to doctors, to work effectively, scientists are advised to sleep at least seven hours a night. Shorter sleep causes problems in the brain.
Also, lack of sleep contributes to the appearance of Parkinson's disease, Alzheimer's and multiple sclerosis.