Title. Is this just a symptom of anxiety or overactive imagination? What’s actually causing those sensations and is there a purpose to them?
In: 34
Your brain is causing the sensation. Evolutionarily, if you saw bugs, there was a chance they were on you, and could bite you and lead to illness. By making you itch yourself, you would be more likely to see any bugs on you, and prevent illness. Same thing happens if you see someone itch for a long time, your brain evolved to assume the people you see sleep near you, so it they have ticks, then you might too.
Itching from thinking about it is just a carryover from above
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