[单项选择] How to Prevent Insomnia Do you have trouble falling asleep Do you fall asleep easily, then wake up 5 hours later and can’’t fall back asleep Do you wake up several times during the night and have trouble staying asleep If so, you are one of over 100 million Americans who experience some form of insomnia (失眠) and your sleep may be improved by better sleep habits. Tips for better daytime habits Do not nap during the day. If you are having trouble sleeping at night, try not to nap during the day because you will throw off your body clock and make it even more difficult to sleep at night. If you are feeling especially tired, and feel as if you absolutely must nap, be sure to sleep for less than 30 minutes, early in the day. Limit caffeine and alcohol. Avoid drinking caffeinated or alcoholic beverages for several hours before bedtime. Although alcohol may initially act as a sedative (镇定剂), it can interrupt normal sleep patterns. Don’’t
A. Y
B. N
C. NG

[单项选择] How to Prevent Insomnia Do you have trouble falling asleep Do you fall asleep easily, then wake up 5 hours later and can’’t fall back asleep Do you wake up several times during the night and have trouble staying asleep If so, you are one of over 100 million Americans who experience some form of insomnia (失眠) and your sleep may be improved by better sleep habits. Tips for better daytime habits Do not nap during the day. If you are having trouble sleeping at night, try not to nap during the day because you will throw off your body clock and make it even more difficult to sleep at night. If you are feeling especially tired, and feel as if you absolutely must nap, be sure to sleep for less than 30 minutes, early in the day. Limit caffeine and alcohol. Avoid drinking caffeinated or alcoholic beverages for several hours before bedtime. Although alcohol may initially act as a sedative (镇定剂), it can interrupt normal sleep pattern
A. Y
B. N
C. NG