The Science Behind Cold Plunges, Saunas, and Contrast Therapy: A Doctor Explains

Cold plunges. Ice baths. Saunas. Contrast therapy has taken over social media, with influencers and athletes claiming that alternating between hot and cold can speed muscle recovery, reduce inflammation, improve circulation, boost mental health, and even make you more resilient. But does the science actually support those claims? In this episode of Health vs. Hype, host Trace Dominguez explores what happens inside your body when you switch between heat and cold, why a cold plunge can leave you feeling energized and euphoric, and whether contrast therapy delivers more than a temporary boost. Joined by sports medicine physician Dr. Chelsea Evans, Trace separates the evidence from the hype, explaining what research shows about pain relief, athletic recovery, circulation, mood, and long-term health benefits—and who should think twice before taking the plunge.

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