Can cold water actually boost our immunity and resilience?

Winter often comes with the unpleasant side effect of colds and flus, and can even impact our mental wellbeing as the days get shorter, darker, and colder. But is there a way to harness the cold and use it to actually boost our immunity and resilience?

Níall Ó Murchú on Portmarnock beach. Picture: Photocall Ireland 

When I first meet Níall Ó Murchú on a cold autumn evening, he is barefoot in a pair of shorts.

Ó Murchú, a certified Wim Hof Method instructor, looks exactly like the kind of person you’d imagine has sat in an ice bath with the Dutch adventurer known as ‘The Iceman’.