cold exposure science, protocols, and practical guides. no bro-science, just what the research actually says.
dopamine, norepinephrine, brown fat, immune function. the peer-reviewed evidence for cold water immersion, minus the hype.
cold showers are free and easy. ice baths hit harder. the honest comparison, plus a progression plan for beginners.
11 minutes per week, end on cold, uncomfortably cold but safe. Andrew Huberman's protocol broken down step by step.