Birthday celebrations tend to revolve around food. Specifically this food is usually a cake or anything with a candle in it. We all know the routine … everyone sings and the birthday person makes a wish and blows out the flame. One story behind this tradition is the wishes made are carried by the smoke from the candles to the gods.
Not to gross you out, but have you ever wondered about germs from the people blowing or (worse yet) spitting on the cake as they blow out the candles? It probably never stopped you from eating cake, but maybe you did think about it.