Cold plunge: what is this practice and what are its benefits?

In recent years, the cold plunge — or immersion bath in cold water — has gained space in gyms, spas, and even in the homes of people looking to improve physical and mental well-being. This practice, previously common only among high-performance athletes, has become popular for promising muscle relief, increased energy, and even better mental disposition. But what exactly does it mean to plunge into cold water, how to do it correctly, and what precautions are necessary to avoid risks? [caption id="attachment_209166" align="alignnone" width="2048"]

In this article, we will explore the origin of cold plunge, its scientifically backed benefits, and the recommendations for those who wish to start incorporating the technique into their routine.

What is cold plunge?

The term cold plunge comes from English and means "cold dive." It is a practice where the body is submerged, partially or completely, in cold water — usually between 10 °C and 15 °C — for a short period, which can range from 2 to 10 minutes, depending on the person's tolerance.

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Historically, cold baths have been used for centuries in different cultures. The Nordics, for example, alternate between hot saunas and diving into frozen lakes, while in Japanese tradition, there is misogi, a purification ritual with cold water. Today, the practice has modernized: there are specific tanks, bathtubs with temperature control, and even spas that offer the service as part of recovery protocols.

The benefits of this practice

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Several studies have been investigating the effects of cold plunge on the human body. Among the main benefits are:

• Faster muscle recovery: cold water helps reduce inflammation and micro-tears after intense workouts, decreasing muscle pain.

• Improved blood circulation: the thermal shock causes blood vessels to constrict and dilate, stimulating the cardiovascular system.

• Increased energy and disposition: immersion activates the sympathetic nervous system, releasing adrenaline and norepinephrine, which provides a sense of alertness and well-being.

• Strengthening the immune system: exposure to cold can stimulate the production of white blood cells, increasing the body's resistance.

• Reduction of stress and improvement of mood: the practice promotes the release of endorphins and dopamine, hormones related to pleasure and relaxation.

• Improved sleep quality: by regulating body temperature, many people report sleeping better after regular cold plunge sessions.

How to do it correctly

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To ensure safety and enjoy the benefits, it is important to follow some recommendations:

Choose the appropriate location

It can be a bathtub, tank, or pool suitable for the practice. At home, even a prolonged cold shower can serve as a starting point.

Control the temperature

Keep the water between 10 °C and 15 °C for beginners. Lower temperatures should be used with caution and by those already adapted.

Exposure time

Start with 2 to 3 minutes and gradually increase, respecting the body's limit.

Conscious breathing

Inhale and exhale deeply to control thermal shock and avoid hyperventilation.

Frequency

2 to 4 times a week is sufficient to feel the benefits, although athletes may include the practice daily.

Precautions and dangers

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Although it is a safe technique for most people, cold plunge requires attention. Individuals with cardiovascular diseases, uncontrolled hypertension, or respiratory problems should consult a doctor before starting.

It is important to avoid prolonged exposure, as excessive cold can lead to hypothermia. Another risk is thermal shock, especially for those coming from a very hot environment, like a sauna or hot tub. Therefore, the transition should be made carefully, observing the body's signals.

Pregnant women, small children, and individuals with low immunity should follow personalized and supervised protocols. If there is dizziness, excessive tingling, or intense pain, it is necessary to leave the water immediately.

CASACOR Publisher is an exclusive content creation agent developed by the CASACOR Technology team based on the knowledge base from casacor.com.br. This text was edited by Yeska Coelho.

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