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Brrrr! Cold Plunge Therapy

By on August 16, 2022

By Lisa Roth Collins | Naturallysavvy.com

Perhaps you are familiar with the polar bear plunge, where individuals willingly jump, run, or dive into icy cold water? Such events are typically done as fundraisers and are not a routine activity. However, some people participate in cold plunge therapy, a healing technique that can be helpful for a wide variety of conditions and ailments when done correctly and with guidance. If you try it, you will be following in the footsteps of history, as people such as Hippocrates and Thomas Jefferson were advocates of cold water therapy.

What is cold plunge therapy?

Cold plunge therapy, also known as cold water immersion or cold water therapy, is the practice of immersing yourself in cold water for healing reasons for a short period of time. After researching various sources, it seems that the temperature of the water varies depending on your tolerance, what you hope to achieve, and your health. (Yes, there can be health risks, which are covered later.) Common temperatures used in cold plunge therapy can range from the high 30s to 59 degrees Fahrenheit.

Benefits of cold plunge therapy

One of the more popular uses for cold plunge therapy is for athletes to help reduce muscle soreness, improve athletic performance, and boost energy. Among several new studies on this topic is one in which the authors found that cold water immersion was significantly better at helping athletes recover from exercise-induced muscle damage than was the use of ice massage.

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If you are looking for an energy boost and an improvement in attention span and focus, cold water therapy may be for you. According to Dr. Rhonda Patrick, making the plunge produces norepinephrine, a neurotransmitter that helps control energy, focus, and attention. Her research has also shown that cold plunge therapy may have the ability to improve insulin sensitivity, enhance memory, prevent muscle atrophy, boost the growth of new brain cells, and improve longevity.

Levels of norepinephrine are also associated with mood and depression. Research has shown that norepinephrine plays a significant role in motivation, intellect, and cognition, and naturally boosting levels can positively impact mood and depression. One study has shown that healthy individuals who immersed themselves in cold water (56 degrees F) for 20 minutes demonstrated a significant improvement in mood when compared with those who didn’t take the plunge.

Cold water therapy is also good for your immune system. The cold water causes the white blood cells to circulate more rapidly through your body. These infection-fighting cells also help produce other infection fighters, such as antibodies and T-cells.

Exposure to cold water can increase your resting metabolic rate, which may result in weight loss. However, this benefit has yet to be proven. Insulin sensitivity, however, may improve with cold water exposure. According to a 2021 review, several studies have shown that “both acute and repeated exposures to the cold can improve insulin sensitivity and reduce fasting glycemia” in people who have type 2 diabetes.

Other potential benefits of taking the cold water plunge include improved sleep, better mood, increased blood flow, and reduced inflammation. Your resilience and mental toughness may improve as well.

Cautions about cold plunge therapy

As noted in one study, “When cold water swimming is practiced by experienced people with good health in a regular, graded and adjusted mode, it appears to bring health benefits.” However, cold plunge therapy is not for everyone. The body experiences significant stress when you enter cold water, which is why it is strongly recommended that you consult your healthcare provider before engaging in this practice. It is also recommended that you proceed slowly, entering the water gradually, allowing your body to adjust to the shock.

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Side effects can be serious, even deadly. Hypothermia is the main effect, which is characterized by shivering, confusion, memory loss, slurred speech, and exhaustion. Individuals who have known or unknown heart conditions risk arrhythmia, respiratory distress, cardiac arrest, and sudden death.

Cold Showering

If you don’t have a tub for doing a cold immersion, taking a cold shower can also have similar effects. You can start with warmer water, slowly adjust it to colder water, finish with two minutes of cold, and work your way up to more time.

Bottom line

Cold plunge therapy is not for everyone, but it is a natural healing option that can be especially helpful for athletes and anyone who experiences exercise recovery challenges or injury, as well as those who may want to improve their immune function, sleep, and mood, insulin sensitivity, and more. Be sure to consult your physician before trying cold water therapy.

Sources

Fakhro MA et al. Comparison of total cold-water immersion’s effects to ice massage on recovery from exercise-induced muscle damage. Journal of Experimental Orthopaedics 2022 Jun 22; 9(1):59.

Ivanova YM, Blondin DP. Examining the benefits of cold exposure as a therapeutic strategy for obesity and type 2 diabetes. Journal of Applied Physiology 2021 May 11

Kelly JS, Bird E. Improved mood following a single immersion in cold water. Lifestyle Medicine 2022; 3(1)

Knechtle B et al. Cold water swimming—benefits and risks: A narrative review. International Journal of Environmental Research and Public Health 2020; 17(23):8984

Moret C, Briley M. The importance of norepinephrine in depression. Neuropsychiatric Disease and Treatment 2011; 7(Suppl 1):9-13.

Patrick RP. Cold shocking the body: Exploring cryotherapy, cold water immersion, and cold stress. 2015

Randall B. The science behind cold water plunges. Discover 2021 May 10

Stanborough RJ. What to know about cold water therapy. Healthline 2020 Jul 8

The surprising health benefits of cold water therapy. SciTechDaily 2022 Apr 19

 

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