题目内容：

    Many people often find themselves waking up in the middle of the night, unusually awake and excited. 1. . That's really frustrating. However, there is no need to worry. Here are some effective ways to help you fall asleep again.

Remain in bed. For you to fall asleep, your heart rate needs to slow down. When you get up, your heart rate goes up. So, avoid going to the bathroom during the night if you can. Do not eat too little or too much for dinner. Do not drink and fill your bladder （膀胱）before bed. 2. . It may make you fall asleep faster, but it may also disrupt

your sleep later in the night.

Stay in the dark. When you cannot sleep, LED lights on printers and cable boxes may be the reason. The same is true for light streaming in through cracks in curtains. 3.. You should cover lights with tape and wear a sleep mask. A popular choice has deep eye cups so your eyes can open and shut while you wear them.

Quiet your mind. Try ways to relax, such as deep breathing, meditation, and mindfulness exercises. 4. . The point is to keep your brain busy with something that is not demanding and is relaxing.

5. . If your wake-up time is 6:30 a.m. and your clock reads 3:00 a.m., do not think Oh no! I have only three hours left! Instead, say to yourself Oh great! I have three more hours to sleep!

You have a problem if you wake three times a week for more than three months. It may affect your quality of life. You need to find a sleep expert who can help identify the cause and fix it.

A. Think in a positive way.

B. Maintain a calm attitude.

C. They may keep you awake.

D. Most importantly, avoid alcohol in the evening.

E. You can do simple math problems in your head.

F. Getting up to do some mild exercise is also helpful.

G. Tossing and turning in bed, they are unable to fall asleep.