Re: Cryogenic Chamber Therapy
WARNING: If you try this at home, do it gradually!
I wanted to report on my cold adaptation experiment.
Before taking The Plunge, I had already done cold showers for quite awhile. 15C showers were a walk in the park, even getting my head wet.
Enter the Cold Bath at 15C!
Well, that was COLD. I started shivering after about 3 minutes at 15C the first time. I decided to do the C's routine: 10-15C for the same number of minutes, for 3 weeks every day, and then every other day thereafter.
Since I did the experiment gradually as the winter approached, the water temp in the pool gradually dropped as I adjusted, which was nice.
There were a few phases that were rather interesting.
On several occasions, after doing a cold plunge, I would wake up in the middle of the night in a cold sweat. I never woke up with an actual fever - like burning up and with squirrelly thoughts and such. I would always wake up cold in a drenched bed, visit the bathroom and wee like a racehorse, chug a bunch of water because I was also thirsty, and then go back to bed (on whichever side was not sweat-soaked). This never coincided with any actual illness. Sometimes it would happen several times in one night. When I woke up in the morning, I always felt fine.
As the water temp dropped, each degree lower seemed like 20 degrees lower. It was a new shock. When the water temp dipped below 10, I was sure that was gonna be the limit. I've now done quite a few plunges at 6, 7, 8, and 9 degrees, for the same number of minutes.
When the temp hit single digits, another interesting phenomenon popped up: my feet felt cold, stiff, and a combination of what I might call minor frostbite + arthritis when I got out of the water. Once my feet were warmed up again, they were fine. No damage occurred or anything. This lasted about a week or two, and it was "decidedly unpleasant" - aka it HURT.
Well, I decided maybe I'd get some little neoprene booties or something, but in the meantime, I went into the pool again at 7C... This time, my feet no longer hurt like before. They were cold, and stiff like the rest of me by the time I got out, but no more pain. The interesting part is that previously, my feet would fall asleep a lot, especially if I sat with my legs crossed. That doesn't seem to happen any more. I would also say that my feet seem to feel warmer than before. I'm starting to wonder if the cold plunges actually improved circulation in my legs and feet!
One other interesting benefit: If I am feeling down, going for a dip in the cold water is like a reboot of my brain chemistry. I'm guessing here that my brain is so pleased that I'm not dead, that perhaps it sends happy chemicals into my body as a thank you card.
I have
not noticed that I'm super-impervious to cold or anything like that, although I was already more of a polar bear than most people.
In the early days of the experiment, I had a few days where after going in the cold water, I was super hungry. That doesn't seem to happen any more. I'm eating the same amount I did before the experiment began.
I also didn't get hit hard by a nasty "bug" that was going around about a month ago. I had only very minor symptoms.
Final notes about rewarming: At first, I'd just get out of the water, get dressed warmly, and stand by the fire and shiver myself warm. After a few weeks of that, I switched to taking a warm shower afterwards. I figured I'd had the cold exposure, and since my body was madly trying to warm itself, I'd help it along. I didn't notice any difference in the benefits of the cold when warming myself up more quickly afterwards.
Today I went in for 7.3 minutes at 7.1 degrees (I got distracted by a chat with someone outside the pool). I got out into the 4C air temperature with no sun, dripping wet, and I didn't even start really shivering until I got inside the warm house and all the way to the bathroom for my warm shower. Still, it takes a good hour to fully rewarm even with the reheating in the shower.
That's about it. If I gain the ability to fly and set myself ablaze by shouting "Flame On!" I'll let ya'll know. ;D