많은 짤과 흥미로운 이야기

The good news is that if you change your sleeping habit a little bit, you can clean up where you used to be sick. On the 20th (local time), Business Insider, an economic media outlet, introduced a way to reduce pain through sleeping habits. For humans, 'sleep' is more important than any activity. We spend about a third of a day sleeping and about 25 years of our lifetime investing in sleep. Slee..