Is a richer world a healthier one?

The BBC's new A Richer World season is exploring global wealth, poverty and inequality.

The world is richer now than ever before. But has it made us healthier?

Life expectancy has increased substantially, for example, but women typically live several years longer than men.

For more on the BBC's A Richer World, go to www.bbc.com/richerworld - or join the discussion on Twitter using the hashtag #BBCRicherWorld.

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