Understanding Jetlag and Circadian Rhythm

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Questions and Answers

What is the primary reason why it is more difficult for most people to travel east than west?

  • Their internal clock needs to be phase-advanced when flying east (correct)
  • Their endogenous period of the body clock is shorter than 24 hours
  • Their endogenous period of the body clock is longer than 24 hours
  • Their internal clock needs to be phase-delayed when flying east

Why is it easier for some 'morning types' to travel eastward?

  • Their endogenous period of the body clock is shorter than 24 hours (correct)
  • Their internal clock needs to be phase-advanced when flying east
  • Their endogenous period of the body clock is longer than 24 hours
  • Their internal clock needs to be phase-delayed when flying east

What happens to the internal clock when flying west?

  • It needs to be phase-advanced
  • It becomes synchronized with local time
  • Its endogenous period becomes longer than 24 hours
  • It needs to be phase-delayed (correct)

Why do most people find it more difficult to travel east than west?

<p>Their internal clock needs to be phase-advanced when flying east (D)</p> Signup and view all the answers

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