the.com/nocebo

The placebo's evil twin: expect harm, and your body kindly obliges.

means A harmless treatment or prediction that makes you feel worse simply because you expected it to.

from Coined in the 20th century as the dark mirror of 'placebo' — Latin for 'I shall please.' Nocebo is built the same way, from Latin nocere, 'to harm,' so it literally means 'I shall harm.' Medical researchers needed a word for the flip side of the placebo effect: when warnings, nasty side-effect lists, or sheer dread cause real symptoms with no pharmacological cause at all.

origin
Latin for i shall harm
cause
triggered by warnings, not actual toxins
real world
drug side effects spike when patients read the leaflet
irony
fear of pain can itself produce pain
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