BBC 6分钟英语 你为什么需要睡个好觉

6 min English from BBC learning english dot com.

A Hello. This is six minute English from BBC Learning English.

I'm Georgie, and we're ready to start.

Phil Bill, sorry, georgie, I was, uh, just catching 42 wings, you know, getting some shot eye, dozing, taking a nap.

I was sleeping, sleeping at work, so how could you?

No, I'm not sorry, I-I didn't sleep well last night.

No, I'll forgive you this time.

But make sure you go to bed early tonight, because getting a good, nice sleep is incredibly important.

E.G., did you know that people who get enough sleep live about five years longer than people who don't?

Wow. So a good night sleep can lengthen your life.

In this program, will be finding out more about the benefits of sleep, and, as usual, learning some useful new vocabulary as well.

But 1st, now that you've woken up, I have a question for you.

Do you know how much of the average person's life is spent asleep?

Is it A-A half? Be a quarter, or see a 3rd?

MM I think we spend about a 3rd of our lives sleeping.

Okay, well, I'll reveal the correct answer at the end of the program.

The question of why humans sleep is not easy to answer in terms of evolution.

Why would it make sense to go unconscious every night, leaving yourself vulnerable to danger?

It can only mean that the benefits gained from sleep are huge.

Here, science journalist Jenny Smith explain some of these benefits to BBC radio for program Inside Science.

So we've probably all experienced this, that if you've had a bad night sleep, and then you try and do some work, you just can't concentrate.

Your brain isn't in the right state to take in new information.

But we also need to sleep after we've learned new things, because that's when our brain consolidates information, takes it from short term storage to long term storage.

Fits in with other things. We already know that old adage of, if you've got a problem, sleep on it.

Your brain does actually work on things during the night, and you cannot wake up and have solved the problem in your sleep.

When we sleep, our brains refresh, leaving us feeling rested in the morning.

But after a bad night's sleep, it's more difficult to concentrate.

We can't take in or understand new information.

We also have the saying, if you've got a problem, sleep on it.

To sleep on it means to delay making a decision until you've had time to think about it.

But that also turns out to be true scientifically speaking.

During sleep, your brain really can work out problems and find solutions.

But what about the other side of the story?

What happens when you get too little sleep, or none at all?

Here's Jenny Smith again talking to BBC radio for program inside science.

Sleep Deprivation is a form of stress, and we know that when you are stressed, your sort of fight or flight response is activated, and that causes all these changes in your body that focus on immediate survival over long term health.

But if we are chronically stressed money worries, or a stressful job, or something that's alive forever or life, or general chronic sleep deprivation that's causing that level of stress, then you might constantly have a damp down immune system, which can then lead to all these knock on problems.

Having none or too little of something important is known as deprivation.

Sleep Deprivation is stressful for the body, so stressful that it activates a fight or flight response changes in the human body in response to a life threatening situation, which make us either stay and fight the threat or run away from it.

As well as a fight or flight response, the stress of not getting enough sleep over a longer period also creates problems including heart disease and a weakened immune system.

Lack of sleep has these knock on effects.

It causes other things to happen, but not directly.

Now, do you see why it's so important to get a good night's sleep?

Phil Plus, it will stop you sleeping at work again?

Right? I think it's time to reveal the answer to my question.

Yes, you ask me how much of the average person's life is spent asleep, what I said it was about a 3rd, which was the correct answer.

Assuming you sleep 8 h a day, the average person will sleep for 229961 h in their lifetime, or around one 3rd of their life.

Okay, let's recap the vocabulary we've had learned, starting with the phrases, catch 40 wings, get some shutey doze, and take a nap, all of which mean to sleep.

When someone takes in information, they understand it.

If you have a problem and you sleep on it, you delay making a decision until you've had time to think about it.

Deprivation is an absence or too little of something important, such as food or sleep.

The fight or flight response describes changes in the human body in response to a dangerous situation, which make us either

stay and fight threat or run away from it.

And finally, if something has a knock on effect, it causes other results indirectly.

Once again, our 6 min are up, but remember to join us again next time for more trending topics and useful vocabulary here at six Minute English.

Good Bye for now. Bye from BBC Learning english com.

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