What Is a Cold Plunge?
Cold plunge therapy, also known as cold water immersion (CWI), involves short periods of immersion in cold water between 50 and 60 degrees Fahrenheit. This practice has roots in ancient traditions worldwide, including within Nordic, Japanese and Roman cultures, and has seen a resurgence in modern times among athletes and wellness enthusiasts.
Cold plunge therapy for improved well-being is also gaining popularity as part of integrative, holistic recovery programs for discerning clientele due to its proven benefits for moods, stress resilience and physical recovery.
How Does a Cold Plunge Work?
Cold plunge therapy takes advantage of the body’s immediate “cold shock” response — the constriction of blood vessels, increased heart rate and deeper breathing. This response triggers the release of endorphins and norepinephrine, natural chemicals that boost mood and alertness. Exposure to cold also stimulates the vagus nerve, which helps regulate the nervous system and can promote a sense of calm and increase resilience to stress.
Regularly practicing cold plunge therapy can help reduce inflammation, improve circulation and support muscle recovery. For those facing challenges with anxiety, depression, trauma or drug addiction, these effects can translate to improved mental clarity, reduced anxiety and better emotional regulation — key for healing and recovery.