Andrew “Cotty” Cotton and his multi-sport high-performance trainer and breath science practitioner, Andrew “Blakey” Blake, recently taught Red Bull athletes and cold plunge virgins how to survive (and thrive) for 5 minutes in 4-degree water in an Austrian lake. But what’s the science, and can ice baths really change your life?   “I remember our first cold water experience about ten years ago. Cotty and I sat in an ice tub, in front of a crowd at Nazare and stared at each other for 10 minutes,” laughed Andrew “Blakey” Blake. “It became an ego thing. 20 minutes after I got out, my hands started shaking, and I dropped my cup of tea. We’ve both learned a lot since then.”  Andrew Cotton, Cortes Bank, 2023. Pedro Bala / Red Bull Content Pool This month, Blakey, Cotty’s trainer, who also works with professional rugby players, big wave surfers, mountain bikers, and runs online and IRL breathwork courses , took a two-day cold water cold immersion session in Austria.…