趣味青春英语电台 第212期:Play by ear

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　　Play by ear ( do whatever you want without plan )

　　Hit the book:

　　Stimulant¹

　　Inhibit²

　　Torture

　　Symptom

　　Quit drinking coffee

　　Coffee contains caffeine that will prevent you to sleep, so that you will suffer insomnia³ (sleeplessness / not getting asleep). "Caffeine is a stimulant, and inhibit sleeping," said David C.Brodner, MD, medical director of Center for Sleep, Allergy⁴, and Sinus Wellness in Boynton Beach, Florida. Caffeine will stay in your body in a period of time, and it will lose in approximately 6 hours after you drink coffee. Therefore, you should avoid drinking coffee 9 hours before you go to bed.

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