Generally speaking, adults should sleep seven to eight hours and children nine hours. Too long or too short can cause sleep disorders, according to People's Daily.
Except for the individual,The latest advice from experts on the eight-hour sleep theory is that it is more important to complete four to five sleep cycles per night, regardless of age.
Experts point out that one way to ensure quality sleep is to stick to a regular rhythm, and the other is to try not to interrupt a night's sleep. Eight hours of sleep has never been more of an average than an option.
Earlier, Sohu CEO Chaoyang Zhang promoted his "4-hour sleep method", namely 12 to 3 o 'clock this time to sleep deeply, then there is no need to sleep. CCTV quoted experts from the Sleep Medicine Center of Beijing Chaoyang Hospital, Capital Medical University, as saying that short-term efficiency is wishful thinking.
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