When they couldn’t diagnose it, they blamed it on hysteria
Individually, the symptoms barely seemed worth mentioning. A runny nose here, a rash there. It could have been allergies or a lingering cold. Until one person started complaining, then another. Over time, a whole floor in an office building might be comparing notes. Many felt a little dizzy. It had been going on for months.
Read more on the original article: The mysterious illness affecting 1970s female office workers became ‘sick building syndrome’