I get that people with it can’t tell the difference between faces, but why? What part of their brain isn’t working properly? How does it translate to face blindness?
In: Biology
According to [the Wikipedia article on the subject](https://en.wikipedia.org/wiki/Prosopagnosia) (which unfortunately isn’t written in an approachable way), there are three types of face blindness, and the cause is typically from neurological damage.
There is no known treatment.
Sometimes face blindness can be acquired (like if you have a stroke, you may have trouble with faces afterward), and in these cases, occasionally, the problem resolves itself over time.
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