<TED Worksheet (Free)>
44. How caffeine and alcohol affect your sleep
Matt Walker
<4:54>   July 2020

 

Questions
(PDF)   (Word)

Answers
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Trascript

 

≪Questions:How caffeine and alcohol affect your sleep≫

  1. The speaker mentions two additional hidden problem withcaffeine. Fill in the blanks.

 Problem #1

(a) Caffeine, for the average adult,

      will have a (1)               of about

      to 5 to 6 hours.

      → (2)        % of caffeine that you had

            is still in your system even after

            5 to 6 hours.

(b) Caffeine also has a (3)                of

       about to 10 to 12 hours.

        → (4)           % of caffeine that

             you had is still in your system

             even after 10 to 12 hours.

       *As a result, it may make it

         harder for an individual to

        (5)               (2 words) or stay

        asleep soundly throughout

       the night.    

Problem #2

(a) Caffeine can decrease the amount

      of deep non-REM sleep.

     → You won’t feel (6)                     

         when you get up the

         next morning.




  1. The speaker mentions three problems that are caused by alcohol. Fill in the blanks.

 Problem #1

(a) Causing (1)                      ,

      which is different from sleeping.

      → In (2)                 , we are switching

          off the firing of the

          (3)                                (2 words),

          particularly in the

          (4)                        .

(b) In natural sleep, hundreds of

       thousands of cells in the brain

       fire together and then they go

       (5)              .

        → This will produce big and

             powerful

            (6)                                        

            of deep non-REM sleep.

 

Problem #2

(a) Alcohol can (7)                  

      your sleep.

      → Alcohol can trigger and

           activate

          (8)                                         

         (4 words) of the nervous

         system during sleep.

      → Alcohol can increase the

           amount of

          (9)                             (2 words)

          released by the brain.

 

Problem #3

(a) Blocking your

      (7)                                 sleep.




  1. Why did the speaker talk about how caffeine and alcohol affect our sleep?   
  1. Because he wanted to tell people to live without alcohol or caffeine.  
  2. Because he thinks life without alcohol or caffeine can save a lot of money.
  3. Because he wanted to provide information about the relationship between caffeine and alcohol,andour sleep.  
  4. Because he thinks sleeping is the most important part of our life.

 

================

≪Answers:How caffeine and alcohol affect your sleep≫

  1. The speaker mentions two additional hidden problem withcaffeine. Fill in the blanks.

 Problem #1

(a) Caffeine, for the average adult,

      will have a (1)  half-life   of about

      to 5 to 6 hours.

      → (2)   50   % of caffeine that you had

            is still in your system even after

            5 to 6 hours.

(b) Caffeine also has a (3)  quarter-life   of

       about to 10 to 12 hours.

        → (4)  25   % of caffeine that

             you had is still in your system

             even after 10 to 12 hours.

       *As a result, it may make it

         harder for an individual to

        (5) fall asleep  (2 words) or stay

        asleep soundly throughout

       the night.    

Problem #2

(a) Caffeine can decrease the amount

      of deep non-REM sleep.

     → You won’t feel

         (6)  refreshed (restored)   

         when you get up the

         next morning.




  1. The speaker mentions three problems that are caused by alcohol. Fill in the blanks.

 Problem #1

(a) Causing (1)  sedation  ,

      which is different from sleeping.

      → In (2)  sedation  , we are switching

          off the firing of the

          (3)  brain cells  (2 words),

          particularly in the

          (4)   cortex   .

(b) In natural sleep, hundreds of

       thousands of cells in the brain

       fire together and then they go

       (5)  silent .

        → This will produce big and

             powerful (6)  brainwaves    

            of deep non-REM sleep.

 

Problem #2

(a) Alcohol can (7) fragment   

      your sleep.

      → Alcohol can trigger and

           activate

          (8)  fight or flight branch 

          (4 words) of the nervous

         system during sleep.

      → Alcohol can increase the

           amount of

          (9)  altering chemicals  

         (2 words) released by the

        brain.

 

Problem #3

(a) Blocking your

  (7)  REM (rapid eye movement) / dream   sleep.




  1. Why did the speaker talk about how caffeine and alcohol affect our sleep?   
  1. Because he wanted to tell people to live without alcohol or caffeine.  
  2. Because he thinks life without alcohol or caffeine can save a lot of money.
  3. Because he wanted to provide information about the relationship between caffeine and alcohol,andour sleep.  
  4. Because he thinks sleeping is the most important part of our life.

 
 

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