• In the white boxes below, type the words you hear. You will hear each word twice.
       (Remember to use the correct spelling and capital letters, etc.).
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

1. say they have found the healthiest time
2. collected data
3. the sleep patterns of 80,000
4. the health
5. heart problems
6. the "healthy" 10pm to 11pm
7. One of the of the study
8. we cannot causation from our study
9. be more likely to the body clock
10. reduce the of seeing morning light
11. we risk disease
12. if our body clock is not reset

Back to the bedtime lesson.

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