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Supporting Content

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• What to do if someone collapses in front of you — Episode 1

  Duration: 4:32

• What to do if someone starts choking — Episode 2

  Duration: 3:29

• What to do if you come across someone drowning — Episode 3

  Duration: 4:10

• The great allergy mystery! — Episode 3

  Duration: 5:19
  See all clips

• Should I take...?

  Michael Mosley quizzes experts with very different opinions on whether we should all take various preventative medicines.

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• Big experiments

  Throughout the series, we ran a number of experiments to put to the test surprising new research claims.

  

• Other issues covered

  We have more information on 听and extra videos including:

• Meet the team

  Find out more about our four presenters:

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