Thanks for the great explanation of what is happening. You're describing exactly my experience with 50F water when I was used to 65. I shivered a LOT in 62-70F water, but get warm right away in 50F, but literally feel the cold creeping up my arms to my core after I get out and I shiver a bit for about 20m.
What I found in 33 degree water: You don't shiver at all until 20-30 minutes after you are out and dry off. This is because your body shuts off all peripheral blood flow to protect the core organs from hypothermia. When you get out and warm up, the cold blood from your limbs and skin get into your core and induce a shivering response. With 70 degree water, you don't experience vaso-constriction and the cooled blood flows freely to your core causing instant shivering.
Interesting,, b/c my experience first with 62F water, then with 50F, was how wonderful my body, and especially my legs (which were submerged longer than anything else just by default), felt after cold immersion.
Originally Posted by cori93437
The colder, the better it feels afterward.
I'm going to take a stab at a possible explanation - at the time you had to do the rehab, your omega 6:3 ratios were probably pretty high?
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