I/E is obviously a thing. S/N has big correlations with g so it's obviously tracking something. F/T is perhaps less obvious statistically(?) but introspectively and anecdotally-observationally still pretty clear, and P/J is the most questionable and confusing part of MBTI so I won't defend it. Hypotheses and conceptual frameworks shouldn't be pet causes.

My current top-of-the-head list.

Exercise is good, sitting is bad, moderate consumption of alcohol is probably good, smoking is bad, fresh vegetables are good, refined sugar is bad, family and friends are good, stress and disrupted sleep are bad. You may have noticed a trend, which is that all of these (except for the alcohol one, maybe) , are thoroughly mainstream. If this trend represents the state of research, I'd suggest a national public health agency's website for the really good interventions.

Understanding other girls is hard.

Understanding people is hard.

If that's how you actually say it, I'd be a little concerned about how you were coming across.

Replace Viliam_Bur with a pretty girl. Are you still concerned about how she's coming across? What if it's two people of the same gender? What if one of them is secretly attracted to the other but pretends to be a friend, yet the other knows about said supposedly secret attraction?

I think you were assuming a certain context and tone and approach that have been more closely associated with that phrasing in your personal experience, perhaps without realizing it.

In a situation like this I usually say something like "let's exchange our phone numbers".

and by an elementary reasoning known in physics as "dimensional analysis", dividing a number of issues by another number of issues cannot give us an ROI

This is just being nit-picky, but from a dimensional analysis point of view, both "dollars per dollar" and "issues per issue" are dimensionless figures, and are thus in fact the same dimension.

Also caused by Autonomous sensory meridian response which is ironically linked to non-threatening behaviour and altruistic, caring attention. (It can also be linked to deep emotional arousal, such as when listening to engaging music.) Identifying this reflex with "unwanted sexual arousal" is simplistic to the point of being just wrong.

Some of my recent forays into reinforcement learning have been very helpful. I should point out that my life is made a whole lot easier by having a very co-operative OH who is willing to reward me or withhold reward as appropriate, so I've not needed to resort to building a robot!

Things that have been successful:

• Every time I think about {thing I enjoy obsessing about}, I go and do the washing up. I used to have a massive ugh field around washing up, but this has quickly diminished (within days!) via association with the nice thoughts. We're thinking of applying this method to other things I have ugh fields around, since it was so quick and effective.
• I've been doing a similar thing to D_Malik with regards to Anki cards. However, it was impractical for me to withhold a reward I would be having on a daily basis, so my OH is implementing "withhold {nice thing} unless I have reviewed my Anki cards for the previous 5 days". It's not as immediate as not eating, but seems to be sufficiently encouraging thus far.

But yeah, having a person help me do it means I avoid any sort of precommitment failure, and generally makes things much easier!

(Side note: Curly brackets clearly denote euphemisms, but I didn't want to be too crude.)

IME (YMMV)

That's basically the point.

The Hacker's Diet

Places way too much focus on losing weight. See parent; losing weight by losing muscle mass isn't desirable.

Second-order effects exist, but they're second-order effects.

Your claim here hinges on the presumption that CI and CO are the only first-order effects, which is almost certainly false. Age, body fat proportion, maximal oxygen uptake, etc., are plausible candidates that I've seen in mathematical weight models.

That's very interesting. Did you turn up anything else that surprised you? After you found that "skin crawling" was unwanted sexual arousal, did that affect your ideas and/or behavior?