Cold water immersion at 14°C increased metabolic rate by 350%, norepinephrine by 530% & dopamine by 250%.

Last night I had the profoundly interesting experience of going straight from a super hot sauna (220 F at its hottest) directly into an ice bath (emphasis on ice… lots of ice). We alternated this for four rounds. Afterwards, I felt very happy and relaxed and, most surprising of all, I found it had COMPLETELY reset my circadian rhythm. To say it has piqued my interest would be a dramatic understatement!