Enter most serious gyms and see a Sauna, close to the showers. It used to be the prize after a long work-out and that’s it. That’s changing. After 10 years of scientific testing, sauna heat has been subjected to serious tests, and the results indicate that it offers a worthwhile, tangible benefit to the overworked body beyond a great sense of well-being. What actually happens when you recline in the heat post workout, and just how much of the hype is there or is it not justified? 

The Case for Heat 

It begins with circulation past a vertical crack. An increase in core temperature causes blood vessels to dilate and blood flow increases. This helps supply oxygen and nutrients to tired muscles and removes waste in the body caused by physical activity. One of the few certainties of recovery is better blood flow and heat is a cheap method to achieve it. 

There’s also a cell layer. Inflicts suboptimal heat on your cells to trigger heat-shock proteins to help protect and restore unhealthy tissues when stressed by heat. Most finds the return is much more straightforward than the physiology: less pain, relaxed muscles a day or two after a challenging workout 

What the Studies Show 

While research specifically targeted at saunas and recovery of the muscle is sparse, it is expanding. In a 2015 trial at the University of Jyväskylä, Finland physically active men would sit in a far-infrared sauna following strength and endurance exercises. The soft, low temperature heating appears to result in some neuro-muscular system recovery following maximal endurance exercise. 

For the endurance athlete, there can be a little additional. Three weeks of study of competitive male runners, raised plasma volume by approximately 7%, and enhanced race-pace time to exhaustion by about a third, likely through the increased production of blood volume. 

There is a sauna paper that is the most cited, but it’s not really about recovery. In a 2015 published a study in the Journal of the American Medical Association (JAMA) Internal Medicine, tracked the health of 2,315 middle-aged men in Finland for approximately 20 years. Sauna users who were using it four to seven times per week had 40% decreased mortality rates, and significantly reduced mortality rates from cardiovascular disease, compared with once weekly users. 

Read the Fine Print 

Gould’s conclusions so far are encouraging, but not final. Large, long mortality study in Finland following 2315 men for approximately 20 years, but observational does imply that the mortality rates are associated, not that the sauna is adding years. Both the recovery trials have the other drawback; the number of men are limited (10 in one, 6 in the other) and they are short-term. A 2018 systematic review from 40 studies and almost 4,000 participants clearly concluded: there is potential health benefits from regular dry sauna use, however, future larger, closed trials are needed. By the heart evidence, the evidence of recovery is the young one but encouraging. 

Beyond Sore Muscles 

That’s where recovery begins but it is seldom where it ends. All this contributes to the higher heart rate that sitting in heat causes, putting stress on the cardiovascular system similar to light exercise raising the heart rate, thus contributing to the long term numbers. Most users also find themselves less stressed and sleeping better, particularly following a night session. It’s not an exciting story by itself. It’s the subtle consequence of maintaining a habit. 

How Often, and How to Stay Safe 

It is more important that it’s done frequently rather than heavily. The research continues to point towards the regular use, and a good guideline for most people is about 15 to 20 minutes of workout thrice a week. 

It’s OK to use it post-exercise, there are two exceptions. Remember to drink more than you think you need as after all you are losing fluid and training has subtracted from your supply. And don’t assume that more heat or more time is necessarily better. When in doubt, get out of the sun. A physician should be consulted before taking if pregnant or if having a heart condition or low blood pressure. 

Why Home Use Changes the Math 

It’s a regularly used word, and it’s this that makes the benefits possible — a trip to a gym or a class at a spa sauna won’t offer it. The reason for this is that gap, and home saunas are now becoming relatively common in the wellness equipment. When you have a unit at your house, friction is eliminated as the fun takes place in your backyard or spare room, at your time. Home saunas come in a wide range of sizes and from reputable manufacturers, such as Dundalk Leisurecraft, SaunaLife, Harvia and SunRay, and are offered in specialist shops such as Topture . 

So is the Sauna Worth it? 

The evidence is in favour for most healthy individuals. The heat is consistently successful at promoting circulation, probably relieves post-workout aches and pains and is backed by cardiovascular statistics that cannot be easily denied. Don’t raise hopes high. They do not achieve it in one session, and the science is still evolving in the recovery side. As in many other aspects of health, consult your doctor on what you think is best for you, and then stick to it.

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