I put my bet on https://en.wikipedia.org/wiki/Mass_psychogenic_illness If the authorities have made the same conclusion, it would be very difficult to tell the affected individuals that. This is since there is a misconception that mass psychosis A) only happens to mentally "weak" persons. B) Symptoms are made up/"just in your imagination"

But the symptoms are very much real, and it's not something that is easily treated. How mass psychosis can lead to actual medical illness is unknown, but the cause and effect is documented.

For that reason it might appear as a cover up, when authorities avoid giving answers.

Even though I'm familiar with the science behind mass psychosis illness, I would still probably have difficulties accepting that as an explanation if I were in a similar situation.

I'm a top executive at a system of record SaaS company. I fail to understand the argumentation this post is trying to make. Language is too vague, problem description too general. Too many abbreviations.

You have a good point. I was about to write something about that in my previous point, like "Finns have a ladder that is lowers than others", but it didn't sound right. You put it with better words.

It's a good point about living in a hot climate often being associated with living a happy life. Although to what I've seen, there isn't much evidence for such a correlation.