听力原文：Do you have trouble sleeping at night？ Then maybe this is for you.When you worry

听力原文： Do you have trouble sleeping at night？ Then maybe this is for you.

When you worry about needing sleep and toss and turn trying to find a comfortable position, you're probably only making matters worse. What happens when you do that is that your heart rate actually increases, making it more difficult to relax.

You may also have some had habits that contribute to the problem. Do you rest frequently during the day？ Do you get virtually no exercise, or do you exercise vigorously late in the day？ Are you worried about sleep, or do you sleep late on weekends？ Any or all of these factors might be leading to your insomnia by upsetting your body's natural rhythm.

What should you do then, n those sleepless nights？ Don't bother with sleeping pills. They can actually cause worse insomnia later. The best thing to do is drink milk or eat cheese. These are rich in amino acids and help produce a neurotransmitter in the brain that induces sleep. This neurotransmitter will help you relax, and you'll be on your way to getting a good night's sleep.

Until tomorrow's broadcast, this has been another in the series "Hints for Good Health".

(23)

A．Avoid getting exercise during the day.

B．Exercise regularly.

C．Sleep late when you feel like it.

D．Think of sleep all the time.