Lol, i would argue that engineers, many of whose primary job function is to imagine worst case scenarios and engineer around those to prevent accidents, data loss, etc. Are the exact type of people that are prone to hypochondria. It's not about growing old and dying, it's about ignoring a stomach ache for a couple months and then being told you have terminal cancer, and then living with the regret of "if only I got it checked out earlier".

In the engineering world, you are almost always rewarded for being extra safe and testing, fixing, and investigating anything that might seem a little off. If you do blood tests, MRIs, and cancer screens for every mole, cough, and stomach pain, you will go insane and develop hypochondria.

I guess depends on the mental counter response those engineers take. Because you have to think about every possibility, you create a counter temperment that doesn't implode thinking about every possibility.

Some might go the other way, and their anxious personality might help them think about everything, but also make them a stress case.

I think the first type tends to last longer in the industry, at least for my coworkers.