Nowadays, lots of individuals stay up late, which is quite dangerous to our health. 11 p.m. to 3 a.m. is the greatest time of Skin Care, and is also the time of the human body flow to go to liver and gall. Many skin problems will be caused, such as killo and whelk, if both of these organs fail to get an excellent rest. Even though you don't like to fall asleep early, the most recent time is 1 a.m. to sleep soundly.