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Melatonin is a hormone naturally produced in our bodies that is mainly involved in regulating circadian rhythms and sleep. It is generally known as a popular sleeping pill among people with sleep problems. Professor Shin Won-chul of Kangdong Kyung Hee University Hospital explains the exact effects of melatonin and how to use it wisely. #Melatonin #Nutritional supplement #Insomnia In charge: Noh Ha-neul, Choi Hee-sun “The information mentioned in the video is about health/medicine. It cannot replace medical treatment.” ✔ If you want to enjoy more fun and informative videos from After the Rain, please click ‘Like’ and ‘Subscribe’ a lot! ✔ After the Rain Official Channel Homepage http://aftertherain.kr