Nigel Beach is a Kiwi revolutionising the sport science space.
He's been into the Wim Hof Method for a number of years - which focuses on hot/cold therapy, bio-hacking and breathing techniques.
And another big focus is our physiological response to stress on our body.
And he's become so successful that he's become the go-to guy for elite sportspeople here and around the world.
Nigel Beach joined Mike Hosking.
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