Science Buzz Your sneeze can produce 40,000 infectious aerosol droplets, which travel at speeds of anywhere between 47 mph and 649 mph. Oddly, science hasn't apparently devoted a lot of timing finding out the actual speed of your airborne mucus, but it varies by your age and the size of the sneeze in question.
Science Buzz Turns out that kissing is a biological imperative: Science shows it helps boost our immunities to certain diseases. Want to beat the Cytomegalovirus, a bug that is carried in saliva and is usually harmless but can cause major problems during pregnancy. So here's what science says: “Female inoculation with a specific male's cytomegalovirus is most efficiently achieved through mouth-to-mouth contact and saliva exchange, particularly where the flow of saliva is from the male to the typically shorter female.”