Do ice baths affect men's and women's brains differently?

Short answer: Ramses Alcaide says a cognitive snapshot after ice baths showed all the men gained anxiety resilience while all the women saw a reduction, showing wellness solutions may not work equally across individuals.

Watch this answer from Episode 41

Watch this answer from Episode 41 (starts at 13:38) · Episode 41 notes and transcript

What was said on Built This Week

From Episode 41: This Headset Reads Your Brain in Real Time. We Demo It Live., starting at 13:38.

Sam Nadler [13:38]: Okay. Just Cool quick question from one of some of your experiments, the race car driving, walking on fire, ice bath, which were surprising? Did your brain shut off in the ice bath? Or is there anything that would be as fun that was unexpected?

Ramses Alcaide [13:56]: Yeah. I mean, what I think was a really interesting thing is we were at breakfast, and we had, like, an ice bath lined up earlier that day. And this girl comes up to us, and she's like, hey. I heard some rumor that women and men, react differently to ice baths and that maybe women may not get the full benefit of what an ice bath as a male would. And in my head, was like, I don't know if I fully believe that, but I have the tools to test it. Right? So we ran some women and we ran some men and we did something called a cognitive snapshot, which you can do actually on your phone. It's in the app. And she wasn't wrong. Like, we saw this key variable called anxiety resilience, which is how well you can handle stress. Like, all the men had an increase in anxiety resilience, which means and that's what you want from an ice bath. You want to be able to handle stress better. So you became more resilient to stress. But all the women got a reduction in it. So we actually saw that, this thing that ended up being a breakfast rumor actually turned out to be more true, and it shows you how wellness solutions may not work equally across individuals.

Ramses Alcaide [15:00]: It really is a customized thing.

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