Main content

The numbers behind 'natural' birth control

Some TikTok users have been claiming that so-called β€œnatural” birth control methods have high rates of effectiveness. We look at how the evidence tells a more complex story.

Videos on TikTok have been claiming that so-called β€œnatural” birth control methods can be 99% effective. We examine what we really know, and how we know it.

Presenter and producer: Charlotte McDonald
Editor: Richard Vadon

(Photo: A young woman with friends looks at a pregnancy test. Credit: Getty images)

Available now

9 minutes

Last on

Mon 22 Aug 2022 09:50GMT
ΒιΆΉΙη World Service

More episodes

Previous

Is opinion polling broken?

Next

Kenya’s Election Rounding Error

See all episodes from More or Less

Broadcasts

  • Sat 20 Aug 2022 04:50GMT
    ΒιΆΉΙη World Service
  • Sat 20 Aug 2022 22:50GMT
    ΒιΆΉΙη World Service Americas and the Caribbean
  • Sat 20 Aug 2022 23:50GMT
    ΒιΆΉΙη World Service Online, UK DAB/Freeview, News Internet & Europe and the Middle East only
  • Sun 21 Aug 2022 00:50GMT
    ΒιΆΉΙη World Service South Asia & East Asia only
  • Sun 21 Aug 2022 13:50GMT
    ΒιΆΉΙη World Service Australasia & News Internet only
  • Sun 21 Aug 2022 22:50GMT
    ΒιΆΉΙη World Service East and Southern Africa & West and Central Africa only
  • Mon 22 Aug 2022 09:50GMT
    ΒιΆΉΙη World Service

Unlock the history and truth behind the data with The OU

Explore how numbers shape, and sometimes mislead us, with The Open University.

When can you trust statistics?

When can you trust statistics?

ΒιΆΉΙη Ideas discovers three easy ways to help make sense of statistics.

Podcast

  • More or Less

    Tim Harford explains the numbers and statistics used in everyday life