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Fall asleep within 3 min. 4-7-8 Breathing technique for Insomnia and Anxiety [3๋ถ„์•ˆ์— ์ž ๋“œ๋Š” 4-7-8 ํ˜ธํก๋ฒ•]


https://www.youtube.com/watch?v=RRSzHqGEd-c

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