Eli5: Why do we say “achoo” when we sneeze?
In: Biology
Saying something when you sneeze is a learnt behaviour – we only say “achoo” because we have heard everyone around us do it
In other countries, different sounds are made when people sneeze. For example, in Japan people say “hakashun!”
Deaf people, especially those born deaf, do not say anything like this when they sneeze, because they have not been conditioned to do so
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