Questioning whether this new spa treatment provides all the medical benefits it claims.
One of our most abundant renewable resources is bogus medical therapies. About every day, someone thinks up a new one: sometimes invented from whole cloth, sometimes extrapolated from a real therapy, sometimes tweaked from an old tradition. Today we’re going to look closely at one such spin-the-wheel-and-create-an-alternate-therapy: cryotherapy.
Don’t confuse this with medical cryotherapy, the freezing off of tissue, usually called cryoablation. Alternative cryotherapy is a hijack of an actual medical term repurposed to refer to the use of what they call a cryosauna, the opposite of a regular sauna. Rather than applying ice to a specific body part, a cryosauna is used for what they call Whole Body Cryotherapy. It’s a small room for one or more people, cooled by liquid nitrogen to extreme temperatures, usually about -125°C/-200°F but sometimes advertised as low as -170°C/-275°F. You have to wear special slippers to protect your feet since you can’t touch anything in there, and you have to wear a mask to avoid frostbite to your pulmonary system. You stay in for no more than three minutes.
What is the medical claim? Unfortunately, as it is with so many alternative therapies, cryosaunas are claimed to cure just about anything the proprietor says, and they all have different spiels. Most all of them say it treats inflammation, skin conditions, and aids in workout recovery. There are several spas, plus chiropractors and other alternative practitioners near me who offer cryotherapy, according to Yelp.
Almost all of the customer reviews are raving. Here are some samples:
“My inflammation almost immediately decreased and I felt a huge wave of euphoria similar to a runner’s high.”
“Felt great afterwards. Will try again to see if I have any lasting effects.”
“I feel euphorically energized after each session and I have noticed that my tendinitis has gotten better after 2 sessions.”
“I feel so good afterwards. I can tell this cryotherapy is helping to heal my body!”
Why do these people feel so good unless there’s something to cryosauna therapy? Is it possible their reaction comes from something other than genuine treatment of some medical condition? The evidence shows that it probably is.
Several years ago, during a lecture on Science-Based Medicine, I noted that if there were one medical pseudoscience that was vulnerable to extinction it was homeopathy. Homeopathy is perhaps the most obviously absurd medical pseudoscience. It is also widely studied, and has been clearly shown to not work. Further, there is a huge gap in the public understanding of what homeopathy is; it therefore seems plausible that the popularity of homeopathy can take a huge hit just by telling the public what it actually is.
Further, homeopathy is in a precarious regulatory position. Homeopathic products are presented and regulated as drugs, but clearly they are not, and they are also not supplements, herbal drugs, nutrition-based, or natural products. They are simply fraudulent drugs riding a wave of ignorance.
In the last few years homeopathy has had a rough time. While the industry is still growing, there are signs of clear trouble on the horizon. Let’s review:
Homeopathy is a 200 year old pre-scientific system of medicine based upon magical thinking. It is mostly based on two notions, the first of which is that like cures like. In other words, a substance that causes a symptom can cure that symptom in extremely low doses. There is no scientific basis for this, despite the desperate attempts by homeopaths to invoke vaccine-like analogies, or their new favorite, hormesis.
The second notion is that you make a remedy more powerful by diluting it to extreme degrees. People have fun making comparisons, such as the need to drink a solar-system’s worth of water to have a 50% chance of getting a single molecule of active ingredient. No problem, say the homeopaths, homeopathic potions contain the magical “essence” of what was previously diluted in them. It’s turtles all the way down.