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WS More or Less: Dozy Science

How much sleep do we really need?

Anxiety around sleep is widespread. Many of us feel we don’t get enough. An army of experts has sprung up to help, and this week we test some of the claims from one of the most prominent among them: Professor Matthew Walker. He plays ball and answers some of the criticisms of his bestselling book Why We Sleep.

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9 minutes

Unlock the history and truth behind the data with The OU

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?

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

Podcast