We learn a bit of societal cues from an early historic period . It ’s impolite to cough without covering our mouths . We saythank youwhen citizenry give us thing like money or patty . And when someone rears back and explodes in a violent projection of snot , we saybless you .

Why do we do this ? What does a blessing have to do with sneeze ? Did anyone ever conceive a fiend flee out of our noses as we honked one out ?

show civilization has n’t done such a groovy problem of chase after this peculiar ritual . Mentions of thebless youreaction date back to asearlyas 77 C.E. , though no explanation is usually pass . What is clear is that people tended to know sternutation as asignof good health that prompt salutations . Greeks and Romans followed up a forcing out of mucus with phrases likelive longandmay Jupiter bless you .

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That convinced connotationchangedwith Pope Gregory I while Europe was in the throe of the bubonic plague , orBlack Death , in the 6th century . Because sneezing was a symptom of illness , the Pope thought it would be proper to sayGod bless youas a piddling additional indemnity from what was otherwise near - sure death .

There was also a pervasivemyththat the marrow would shortly finish while sneeze , in all probability due to changes in stock menstruation that might cause a abbreviated delay between heartbeats . mass may have saidbless youto make certain the heart would continue beating rather than stop altogether , or as a form of congratulations : Bless you , Carl . That sneeze did n’t kill you .

culture who believed spirits could either be eject or malign smell transmitted during a sneeze may have also assume the musical phrase to help ward off such exchanges .

However it come about , it ’s clear we ’ve adopted a blanket policy when it follow to sneezing . When people do n’t saybless you , we start to distrust they do n’t care about our well - being . As etiquette editorialist Miss Manners onceobserved , it ’s considered more rude for the great unwashed getting hit with snot shrapnel to bypass thebless youthan it is for the person detonate the germ turkey to fail to sayexcuse me . go forth it to a plague to make a lasting belief on people .

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