The coffee habit: Why do we love it so much?

For millions of us around the world, the day hasn't begun until we've had our first cup of coffee.

Ruth Alexander traces our love affair with coffee back through history, to the wilds of Ethiopia where it was first discovered. She experiences some of the ancient traditions built around coffee which still endure today and asks why this bitter drink has always had such a hold over us.

And does it matter if we enjoy a coffee or three every day? Ruth finds out what's it doing to our brains and bodies, and whether we really need to worry about kicking this ancient habit.

Produced by Lexy O'Connor

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Image: Three roasted coffee beans float on a light green background. Credit: Getty/Jose A. Bernat Bacete