The Unfrozen Caveman Runner: How To Get A “Free” Endurance Workout & Blast Sprints On A Norepinephrine High From Cold Water Exposure. March 12, 2019 Article-newArticlesBiohackingFitnessMental HealthMind-SpiritPerformanceRecovery & Sleep If you've ever taken an ice bath or cold shower, then headed to a workout and felt like you were... Read more