In the Victorian era, psychologists claimed one-quarter of women suffered from “the vapors.” ... The vapors were caused by an imbalance. Humors in the spleen rose through the body to affect the mind. ..…

The blue-collar temporary workers, such as H-2B workers, are usually replaced each year by new blue-collar workers, but the number of resident long-term white-collar workers has risen to roughly 1 million during Obama’s two terms. . ..…