Story perspectives
Cold Water Swimming: Mental Health Boosts and Risks
10/7/2025
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Story summary
- Dr. Mark Harper says his first cold-water swim yielded mental health benefits, though evidence remains limited.
- Historically, cold-water immersion has long been promoted, with Thomas Jefferson among advocates.
- Dr. Mike Tipton notes physiological effects and warns of risks such as hyperventilation and drowning.
- They urge safe environments and awareness of local conditions, with exposure above 12°C (54°F) for short durations.
