The humble walk can be a game-changer for health, but how many steps do you really need to take each day? Leading Australian cardiologist and mountaineer Dr Nikki Bart fills us in. 

WANT MORE FROM DR BART?

To hear today's full interview, where she discusses the moment she reached the top of Everest...search for Extra Healthy-ish wherever you get your pods.

Don’t wait, sign up for Coastrek here or see their Instagram @coastrek. You can find Nikki on Twitter @DrNikkiBart or here. 

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