Swimming in cold water may bring benefits but also poses risks – AP News
5 hours ago
- #mental health
- #cold-water immersion
- #safety precautions
- Cold-water immersion may offer health benefits but also presents risks.
- Dr. Mark Harper recalls his first cold-water swim and the unexpected positive sensations he experienced.
- Claims about the benefits of cold-water immersion date back centuries, including Thomas Jefferson's use of cold foot baths.
- Scientific evidence for the health benefits of cold-water immersion is still lacking, but mental health benefits are strongly suggested.
- Cold-water immersion may boost mental health through mechanisms like hormesis and the placebo effect.
- The activity can be a confidence builder, with first-timers often feeling empowered.
- Cold-water immersion presents dangers, including the risk of drowning from hyperventilation due to cold shock.
- Experts recommend entering water at 20-15°C (68-59°F) for a few minutes to gain benefits without excessive risk.
- The body's cold-shock response includes a sudden drop in skin temperature, release of stress hormones and endorphins, and anti-inflammatory effects.
- Prolonged exposure to very cold water can be harmful, potentially leading to nerve damage or frostbite.
- Humans are considered 'tropical animals,' making cold-water immersion inherently stressful and risky for cardiovascular and respiratory systems.
- Safety precautions include swimming in guarded areas, with experienced swimmers, and understanding water conditions.
- Entering cold water in a controlled, incremental manner is advised to minimize risks.