Sleep balances the mind and with the increase or decrease of the number of hours, one loses one’s balance and concentration. The human need for sleep varies according to many factors, the most important of which is age. What is the ideal number of hours of sleep for each stage of life?
Increasing or fewer hours of sleep leads to disease, so it’s important to know how many hours of sleep a person needs at every stage of their life.
The U.S. National Health Foundation has released a list of hours of sleep per age, based on an assessment of data from several scientific research in different fields, bearing in mind that this list is suitable for people who are healthy and do not have sleep disorders.