Reference; http://seino-1987.jp/html/
Modified and translated by CFJA
2. The number of hours of sleep
How many hours of sleep a day is enough to relieve fatigue of the body? The number of hours of sleep that people in our clinic need varies from person to person.
The appropriate amount of sleep depends on the age of the patient.
- Newborns (less than one month old); all day long.
- Infants (1- 12 months); approximately 11 to 12 hours.
- Infants (1 – 3 years of age); approximately 10 to 11 hours.
- School-aged children (3-6 years of age); approximately 9-10 hours.
- Primary and secondary school students; approximately 9 hours.
- High school students and above; approximately 8 hours.
- Older people (approx. 60 years and over); roughly 8 hours, of which 1 hour for a nap during the day.
Adults in modern society live their lives later and later at night, and many of them work with less sleep. (In our opinion, there are very few working people who sleep more than seven hours.)
People who sleep the following average number of hours of per day are unable to relieve fatigue daily in the body
- Less than seven hours have a constant state of physical weakness.
- Less than six hours continue to have some physical pain and some physical difficulties in their lives.
- Less than five hours are more likely to have an illness somewhere in their body.
As might be expected, there are not many people who average less than four hours a day, but such people will have to stop their activities within six months because their bodies are unable to endure.