Cold-Water Therapy: Cure or Risk?

As cold-water immersion, ice baths, and cold showers have grown in popularity in recent years, scientists are drawing attention to both the potential benefits and the serious risks of this practice. Researchers note that there is growing observational data, especially on positive effects on mental health, but that conclusive scientific evidence is still limited.

They state that the "feel-good" sensation after entering cold water may have positive effects on depression and general well-being. Researchers think this effect may be related to the release of stress hormones, increased endorphins, and reduced inflammation. It is also suggested that a mechanism called "hormesis," in which low doses of stress create beneficial adaptations in the body, may play a role.

However, experts emphasize that cold-water shock can increase the risk of hyperventilation, cardiovascular stress, and drowning. In particular, prolonged ice baths are said to potentially cause nerve and blood vessel damage. For this reason, controlled entry, short exposure, and gradual adaptation are recommended.

Conclusion: Cold-water immersion may provide physical and psychological benefits for some people; however, it is a powerful physiological stressor that carries serious health risks when not done correctly.

Source
Associated Press. (2025, October 12). Cold-water immersion may offer health benefits, and also presents risks: Evidence is building around positive effects, but scientific confirmation is lacking.