It could be beneficial to run out of hot water when taking a shower. Even a brief cold shower can serve as cold therapy to promote healing, recuperation, and overall well-being, particularly following physical activity.
Cold therapy, also called cryotherapy, uses exposure to cold temperatures to cool the body’s tissues for therapeutic reasons. There are several ways to apply cold therapy, including:
- Cold showers, which involve lowering the water temperature below 60 degrees for two to three minutes at a time
- Cold spray, used to numb a small area
- Cold water immersion or ice baths, or submerging everything but your head and neck in cold water
- Localized ice application to treat injuries or specific muscle groups
- Whole-body cryotherapy, which exposes the body to very cold vapors
1. Increase your resistance to colds
Going from a hot to cold shower even for a couple of minutes might protect you from circulating viruses. Leukocytes, the blood cells that fight off infection, can be stimulated by the shock of cold water. People who took cold showers for 30, 60, or 90 seconds for 90 days reported missing work 29% less frequently than those who didn't.
There is little information on how cold water therapy affects depression. However, the available research yields some encouraging findings. Participants in one clinical trial reported fewer symptoms of depression after taking daily cold showers for several months. Cold water may improve your mood and reduce anxiety, according to more studies.
2. Fight depressive symptoms
Your body goes into "survival mode" in cold water, exerting great effort to keep its core temperature stable. Your body is stimulated to boost blood flow and circulation as a result. Increasing circulation helps those with high blood pressure or diabetes by redistributing blood and delivering freshly oxygenated blood to parts of the body that need to heal. Over time, your circulatory system may become more effective and carry blood around the body more quickly.
3. Boost blood flow
4. Reduce inflammation and prevent muscle soreness
Cold temps make your blood vessels tighten up (vasoconstrict). When that happens, blood moves to your body’s core and vital organs. The blood naturally becomes oxygen- and nutrient-rich during the process.
5. Relieve localized pain
Cold therapy alleviates pain by reducing inflammation. But it also interferes with your brain’s perception of the pain.
Health considerations before taking cold showers
- Cold urticaria (hives), a skin reaction to cold exposure
- Heart disease, since a shock of cold may put added stress on the heart
- Raynaud’s syndrome, which causes numbness in your fingers and toes in response to cold temperatures