Yeah I've had so many family members in hospitals over the years and these are always the most nerve-wracking, depressing places. And I'm in a "first-world" region with one of the highest costs of living in the world.
I think the worst is the nightmarish greenish-yellow hue due to the combination of cheap fluorescent lighting and "neutral" (light green) furniture/wall colors. One step in there and you just know there's probably someone dying somewhere nearby. It sounds sensationalistic to say, but man I always feel this sense of dread immediately.
There are newer/nicer places that _don't_ create this feeling right away, and the difference for me is night and day. Even though all the same stuff happens, the atmosphere is so different and doesn't trigger this primal dread.