You mean it wasn’t for love or sex? That sucks….
Believe it or not, scientists are claiming that kissing was invented to spread germs that help build up immunity to illness.
Scientists also said that kissing lets a bug named Cytomegalovirus to be passed from man to woman to give her time to build up protection, before she gets pregnant.
The bug is found in saliva and usually doesn’t causes any problems.
But it can be dangerous if a woman catches it while pregnant and it can kill unborn babies or cause birth defects.
Kissing the same person for about six months gives the best protection.
As the relationships gets longer and the kisses get more passionate, the woman’s immunity builds up and cuts her chances of getting sick.
By the time she gets pregnant, the chances of her unborn baby getting infected are much lower.
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