Professor Lee Yoo-jin talked about healthy sleeping habits that help insomnia. TVN ⁇ You Quiz on the Block ⁇ 193 Episode ⁇ The Best Doctors Lee Yoo-jin, ⁇ Nikos Christodoulides ⁇ cartoonist Kim Soo-jeong, Actor Kim Woo-bin appeared and talked relay with MC Yoo Jae-Suk and Jo Se-ho. On this day, Jo Se-ho asked Lee Yoo-jin, the head of the Sleep Medicine Center at Seoul National University Hospital, for help, saying that her mother had severe insomnia. Lee Yoo-jin suggested that healthy sleeping habits are important, and that you should wake up at a fixed time in the morning and not watch the clock in the middle. I can not control sleeping and waking, but I have to adjust even from the time I get out of bed. Lee Yoo-jin said, "If you keep looking at the report card, will you fall asleep?" For example, Yoo Jae-Suk replied, "Our report card does not sleep." I laughed. Lee Yoo-jin said, "Sleep habits are not really a big deal. It always happens at the same time, and you can get out of insomnia by correcting the habit of cleaning the clock in the room." Yoo Jae-Suk said that watching SNS on a smartphone or watching a video is not good for sleeping. Lee Yoo-jin explains that melatonin, which helps sleep, is secreted two hours before sleep, and is suppressed when there is light. He also said that he should not excite his body and mind four hours before his self. iMBC ⁇ tvN screen capture