There was a moment when I was worried about the sharp air penetrating straight through to my heart. It was reassuring to know that at thirty-eight years old that there are still plenty of ‘first time’ experiences in life. I am stood in my underwear with only some thermal gloves and a pair of clogs in a ‘Cryosauna’: a cylindrical chamber not unlike a shower cubicle and I’m surrounded by plumes of dry ice.