In recent years, the topic of ice baths and cold exposure have become incredibly popular in the fields of sport, health, and fitness. Beyond the social media videos of people jumping in lakes and tubs full of ice, however, is a discipline that isn’t just for show. It can have a profound impact on your well-being and cycling performance, and this article is going to show you why.
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What Is Cold Exposure?
Cold exposure refers to the practice of deliberately subjecting the body to cold temperatures for varying lengths of time. This can take many forms, including cold showers, ice baths, immersion in natural bodies of water, or even exposure to cold air. Each of these has their own unique benefits and disadvantages.
Cold Showers
Cold showers are one of the most accessible and moderate ways of introducing yourself to the cold. You can control the temperature if things get too intense, and you’re also only periodically exposing each part of your body to the cold as a result of the directed nozzle. Ending your normal shower with a cold 30 seconds to a minute is a great way to get started.
Cold Bath/Ice Bath
A cold bath or ice bath is a significantly different experience than the shower, because your body is actually submerged in the cold for a given length of time (you don’t actually need ice, your coldest water setting will be plenty). It is best to only submerge your lower body in the beginning, as things get even more intense when the upper body and neck are submerged.
Natural Bodies of Water
Being out in nature and embracing the cold is one of the most invigorating experiences a person can endure. It is also, however, one of the most dangerous. You truly have to surrender to Mother Nature and be able to handle the fact that you have no control of the things outside of you. This mental aspect, though, is also one of cold exposure’s biggest benefits, regardless of setting.
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Benefits of Cold Exposure
The benefits of voluntarily subjecting yourself to the cold are far-reaching, indeed. Prescribing somebody a cold bath, for example, dates as far back as Hippocrates, the father of modern medicine, and the classical Greek period (specifically between 460 BC and 370 BC). Cold baths were believed to stimulate the body’s natural healing mechanisms – which turns out to be true.
Stronger Immune System
Cold exposure is a stress on the body that activates the immune system. Your body responds to the stress by executing a series of defensive processes, similar to fighting off an ailment. This marginal stimulation is similar to the slight tearing of muscle fibers during exercise, which grow back bigger and stronger. The outcome in this context is better disease resistance and immunity.
Brown Fat Production
Brown fat is not like body fat (adipose tissue/”white fat”). It is a metabolically active tissue that helps you regulate your temperature by using body fat as fuel (like a furnace). People who work outside or do regular cold water immersion have higher levels of brown fat, making them more comfortable in the cold, and also serving as an important indicator of health and longevity.
Improved Circulation
The human body contains a vast network of blood vessels, upwards of 100,000 miles worth (that’s enough to go around the Earth 4 times). When the cold water hits you, everything inside contracts, and blood rushes away from the extremities and towards the core. As you’re warming up, everything dilates, giving this entire network an internal workout and massage.
Waste Removal & Recovery
The flushing of blood helps facilitate recovery through the removal of waste byproducts (such as lactic acid) and the delivery of nutrients to tissues throughout the body. Also, by strengthening your circulatory system through the adaptation to this stressful stimulus, you will be better prepared to recover and perform in future rides, workouts, and other training.
Mood & Alertness
Cold exposure has been shown to produce a staggering increase in noradrenaline and dopamine by 530% and 250%, respectively. Noradrenaline (norepinephrine) is responsible for arousal and alertness, while dopamine is known as the pleasure hormone, and is released when we are doing something that makes us feel good (and also depressed when we are feeling…depressed).
Mental Resilience
Cyclists know how tough our sport is, and how important the capacity to deal with discomfort is. Voluntary cold exposure allows a person to consistently and systematically override their fear response and learn how to handle stressful situations and sensations. Not only is this beneficial for your riding, but for every other area of stress management in life, as well.
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How Do I Do Cold Exposure?
Start slow. As we’ve already established, getting into cold water is a stressful event, and needs to be taken seriously. Many people say they don’t like the cold or even hate the cold, and that cold exposure is something they could never do. Well if that’s you, you’re not alone…but you can do it. Here’s some quick technique tips followed by a few pieces of beginner advice.
Technique Tips
Breathing is your biggest friend when doing cold exposure. When you get into the water, everything contracts, and your breath will want to become short and shallow. If this continues, you will panic and get out. Focus on forcing in a big inhale, and then slowly exhaling with as much control as possible, no matter how uncomfortable.
This will signal your body to relax and surrender to the cold, where you can then focus on managing the discomfort through control of your mind and focus on your breath. You’ll notice as you practice that the less control you have over your breath, the harder it will be to stay in the water, and vice versa.
Recent studies have shown that 11 minutes TOTAL throughout a given week is enough to achieve many of the benefits of cold exposure. This doesn’t mean 11 minutes at a time, but spread out over the course of 7 days. Daily 2 minute exposures in an uncomfortable, yet tolerable, temperature is a great goal to aim for.
Beginner Advice
A cold shower is one of the easiest ways to start. End your shower with a cold shower by turning the tap as cold as it can go (or in between, if you’re really hesitant). The low back and buttocks are the least sensitive, so they can be good places to start. Try 10-15 seconds (or longer). Slowly increase this time until you can do 2 minutes on cold with water covering your entire body.
The next step would be a cold bath. Keep in mind that this will be substantially more intense than the shower. Fill the tub with your coldest water. For your first time, only fill half way so just the lower body is submerged. Try to stay in for two minutes. You can progress to full body submersion to the neck when you feel comfortable. Take your time.
Natural bodies of water should not be attempted until you have built up a high level of confidence in the tub. You should also never be alone. Especially if it is fall/winter time, the water outside will be even colder than the tub (approx. 2-3℃ to 7-8℃, respectively), and you will have other things to deal with like wind, noises, etc. Safety is the most important thing.
After you get out of cold water (shower, tub, or otherwise), try to avoid hopping right into a hot shower or wrapping yourself in blankets. Much of the strengthening and immunity benefits comes from your body working hard to warm itself up through shivering, which also releases a molecule (called succinate) that stimulates the production of brown fat.
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When Should I Do Cold Exposure?
For cyclists, and athletes in general, there has been some controversy about when cold exposure should be done for the best results. There is evidence showing that immersion in cold water is an effective recovery tool after endurance and high-intensity training (which cycling would fall under). But is after always the most ideal?
When we look at the question scientifically, it’s actually pretty straightforward. When you exercise, you damage the tissue in a minor way, which causes inflammation in the body. These inflammatory markers serve as important signals for the body to repair the tissue and adapt to the stressors that you’ve applied to it. Cold exposure, as we’ve determined, reduces inflammation.
This can work both for and against us. If we are competing in a multi-day event or have to recover quickly between sessions, doing cold exposure immediately after a ride or bout of training can help us recover through reduced muscle soreness, restoration of muscular power and improved perceived feelings of recovery.
If, however, we are just on a normal training schedule where we aren’t competing, there aren’t time constraints, and we’re looking to reap the long-term benefits of each training session, the protocol is different. Cold exposure should then be done before or significantly after (4+ hours) our training so we don’t inhibit the inflammatory/adaptation process from occurring.
Closing Thoughts on Cold Exposure
Having cold showers and immersing yourself in cold water is proving to be a phenomenal way to promote long-term health, mood elevation, and athletic performance. Overall, it is an accessible tool that we can all try, experience, and learn from. Something to help us take control of our well-being, ride pain-free, and enjoy the sport of cycling and life as a whole.