We take up to 1 in 3 of the day to sleep by sleeping enough hours of each person, there are no exact definition, but in most cases. Adults often want to sleep 7-9 hours per day. Teenagers need 9 hours of childhood to 10-12 hours. 18 hours per day, but by several factors, such as stress. Health problems or the environment, it may result in some people insomnia or sleeping less than usual, which may result in damage to the body.
การแปล กรุณารอสักครู่..