[yellowapple]

I'd argue that stress tolerance affects both ability and interest. If you're averse to stressful environments, then you're going to be less interested in working in such an environment.

Of course, even people who tend to avoid stressful environments are still capable of high performance in such environments. That doesn't make such environments any more attractive.

For reference, the stressfulness of certain tech environments has been cited (or at least I think it has; I'm on my phone on my lunch break, so pardon my lack of URLs) as one of the factors behind the underrepresentation of women in technical fields. Even things like long and unpredictable work hours can (I would guess) have a chilling effect on working moms (and dads, but there's arguably less social/cultural pressure there, at least here in the US) wanting to actually spend time with their families.