The capacity or tendency of a person to be influenced by their own thoughts and ideas, leading them to believe or do things based on self-generated suggestions.
From 'autosuggestion' plus '-ibility,' the suffix denoting capacity or susceptibility. The word emerged in early psychology to describe a mental phenomenon studied since the 19th century.
Autosuggestibility explains the placebo effect—when you convince yourself a sugar pill will help your headache, your brain actually releases pain-relieving chemicals, proving that sometimes your mind's power is more real than any medicine.
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