On January 30th, 1962, an all-girls boarding school in Kashasha, Tanganyika, witnessed one of the oddest types of mass hysteria ever recorded in human history: The Laughter Epidemic. This epidemic, ...

My husband, Don, likes to say that he needs to laugh every day (but only cry once or twice a year). I appreciate and admire his good nature, and I’m sure his ability to see the humor in life helps him ...

When I was little, I tended to fall into bouts of uncontrollable laughter. Basically, once I started laughing, I found it very difficult to stop. The problem was particularly acute in contexts where I ...