Scientists suggest that today,most adults get up to two hours’ less sleep than they need.
As a result,those lacking in sleep are forgetful,tired,less productive and grumpy.
Sleep is the time when our bodies and minds are rested and restored.
There are two types of sleep:Rapid Eye Movement and Non-REM.We need both types to be healthy.
Rapid Eye Movement sleep is when we dream.Our brains are active,and our eyes have fast short movements,as if watching something.
This type of sleep helps restore our mind.
Non-REM sleep is when our brain and body slow down.Our heart rate slows and our breathing is regular.
This type of sleep helps restore our body.
We have twice as much Non-REM sleep as Rapid Eye Movement sleep each night.
To get better sleep,have a regular time for sleeping and a routine before you go to bed.
This will give your body the signal that it is time to sleep.
Make sure the bed and bedroom are quiet and comfortable.
If your bed is too hard or too soft,if you are too cold or too hot, you will not sleep well.
For two hours before going to bed do not drink coffee or alcohol,or do not smoke or exercise.
All these activities stimulate your body and make sleep difficult.
科学家们认为，如今，大多数成年人的睡眠时间比他们需要的少两个小时。
结果，那些缺乏睡眠的人健忘、疲劳、效率低下、脾气暴躁。
睡眠是我们身心得到休息和恢复的时间。
有两种类型的睡眠：快速眼动睡眠和非快速眼动睡眠。我们需要这两种睡眠才能保持健康。
快速眼动睡眠是在我们做梦的时候。我们的大脑是活跃的，我们的眼睛有快速的短暂运动，好像在看什么东西。
这种睡眠有助于恢复我们的思维。
非快速眼动睡眠是指我们的大脑和身体速度减慢，心率减慢，呼吸正常。
这种睡眠有助于恢复我们的身体。
我们每晚的非快速眼动睡眠是快速眼动睡眠的两倍。
为了获得更好的睡眠，有规律的睡眠时间和睡前的常规。
这会给你的身体一个信号，就是该睡觉了。
确保床和卧室安静舒适。
如果你的床太硬或太软，如果你太冷或太热，你就睡不好。
睡前两小时不要喝咖啡或酒精，也不要吸烟或锻炼身体。
所有这些活动都会刺激你的身体，使你难以入睡。