Despite the development of high technology, scientists still can not explain some of the factors affecting the duration of our lives.
One of the unsolved problems is the increased risk of heart disease, those who like to sleep 10-12 hours a day.
Scientists from Norway conducted a series of experiments, as a result of which it became known to the people who sleep less than 4 hours per day, and with whom he was more than 10 hours, almost the same part of the group to the risk of cardiovascular disease.
As it is known is considered normal sleep 8 hours at the same time, it is recommended to go to bed no later than ten o’clock in the evening, because it was in the first half of the night going unloading the body, especially the brain, which need to rest.
There are some professions where people have to fulfill their responsibilities in the night, so they are advised to be sure to go to bed before the start of work and after a change to the total number of hours of sleep was normal.