Cold-Water Immersion and Health Effects

A systematic review and meta-analysis on cold-water immersion (CWI) reveals that its effects on the human body are time-dependent and context-specific, offering some health benefits but with limitations. The research shows delayed stress reduction, inflammation response, immune system impact, sleep quality improvement, and short-term quality of life gains. Safety considerations are highlighted, especially for those with pre-existing health conditions. More research is needed to establish optimal protocols and who might benefit most.