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Lumifer comments on Does hormetism work? Opponent process theory. - Less Wrong Discussion

7 [deleted] 25 February 2015 02:00PM

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Comment author: Lumifer 27 February 2015 08:48:29PM 1 point [-]

my impression is that it's a bad idea to dunk your head in cold water under most conditions

Hmm, any links? I could see this leading to headaches/migraines in susceptible people, but otherwise why not?

What should an optimal ramp look like?

What would you optimize for?

Comment author: Vaniver 27 February 2015 09:27:29PM *  1 point [-]

Hmm, any links? I could see this leading to headaches/migraines in susceptible people, but otherwise why not?

...otherwise? If it's giving you a headache, that seems like a good reason to suspect damage. I have mostly seen anecdotal reports; headaches for showering, and this person claims that their Finnish friends recommend against submerging their head during a jump into the lake during the sauna. (Perhaps some Finns here could chime in?)

What would you optimize for?

Beneficial health impact?

Comment author: Lumifer 27 February 2015 09:32:56PM 1 point [-]

...otherwise?

Otherwise in the sense of if you know you're susceptible, don't do it, but otherwise -- if you know you don't get headaches from that -- are there any other reasons to avoid?

Beneficial health impact?

Quantified as what? When you are optimizing things, it's useful to have a numeric value that you're trying to maximize (or minimize).

Comment author: Vaniver 27 February 2015 09:40:51PM 1 point [-]

Quantified as what? When you are optimizing things, it's useful to have a numeric value that you're trying to maximize (or minimize).

Sure, but I doubt that the optimal ramp for brown adipose tissue activation is that much different from the optimal ramp for mood / energy adjustment, or the optimal ramp for immune strength, or so on, and by optimizing for one of those things rather than none of those things you give yourself enough of a feedback loop to prevent ramps that are harmful overall.

Comment author: Lumifer 27 February 2015 09:53:49PM 1 point [-]

I would find it difficult to optimize in the short-term for mood due to noise and confounders, and pretty much impossible to optimize for immune strength since I have no easy way to measure it.

In my experience ramps are not needed at all, so I would expect that even for people who would like one it would take time on the order of a couple of weeks which is way too short to optimize for something that you can't easily measure directly.