Seven months at a high-altitude research facility and I've stopped being able to sleep unless I can see stars, which is becoming a problem now that I'm back in the city.
More people experience this than they realize.
The psyche can become so attuned to extraordinary conditions that ordinary reality feels impoverished.
“Where Are You with Extreme environments — poles high altitude deep ocean?”
If this sounds familiar, the Library can help you find the bigger picture.