5min chapter

Cautionary Tales with Tim Harford cover image

Sonic Poison? The Genesis of Havana Syndrome

Cautionary Tales with Tim Harford

CHAPTER

The Power of Expectation Made Someone Ill

In 1990, more than 50 school children were rushed to hospital when they started feeling sick after lunch. It turned out that the cucumbers served at school lunch were probably contaminated with insecticide. The trouble is that psychogenic and physiogenic illnesses need treating in completely different ways. For every Joel Nitskin who decisively cures a psychogenic outbreak, there's a doctor bruskely telling their patients to snap out of it. If you're ill because something's got into your body, a toxin, or a virus, or a bacteria, you need to figure out what that thing is - if it has an antidote.

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