Instant Genius is a bite-sized masterclass in podcast form. And in this episode, we're delving into the topic of humans breasts.

Why? Well, it goes without saying that breasts get a lot of attention. But less focus is given to the science behind them: why do we have them? Why are they all different, and does it matter? What happens when things go wrong?

GP and author Dr Philippa Kaye is out to change that in her latest book, Breasts: An Owner’s Guide. In today’s podcast she tells us about the science of human breasts, the benefits – and costs – of having them, current research in breast cancer and sports, and how to take care of yours.

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Noa LeachNews editor, BBC Science Focus

Noa Leach is the News editor at BBC Science Focus. With an MPhil degree in Criticism & Culture from the University of Cambridge, Noa has studied cultural responses to the climate crisis, wildlife, and toxicity. Before joining BBC Science Focus, Noa was the Editor of The Wildlife Trust BCN’s magazine Local Wildlife. Her writing has been shortlisted for the Future Places Environmental Essay Prize.