Healthy Lifestyle

Every person goes through ...stages of sleep.

The last stage of sleep is called

In the stage REM you

Very bad dreams are called

You dream....times during the REM stage.

If you have problems falling asleep, you shouldn't drink .... in the evening.

Many teenagers can not get out of bed in time for school because...

Sleep is ....important for teenagers.

Melatonin is

Research has shown that teeenagers start to produce melatonin at

If tennagers do not get enough sleep, they can

... some schools start their classes later in the morning.