There’s something special about a first kiss. It’s something unique shared between two people. It’s anticipated, practiced and even featured in movies. No wonder why some people can find it rather intimidating. Whether you already had your first kiss or are eagerly waiting to pucker up, there’s more to kissing than just what you’ve seen on the big screen. That’s right! Did you know there’s a science to kissing? Read on to find out some interesting and fun facts about kissing. Did you know... The science of kissing is called philematology. The top five foods to avoid 24 hours before a kiss are garlic, onions, fish, cheese and pastrami. A little peck uses just two muscles around the lips. A passionate kiss uses all 34 facial muscles. Kissing signals our brain to produce oxytocin, a hormone that makes us feel good. It's a scientific fact that biology causes one kiss to prompt another! When we kiss, our hearts beat faster and our breathing becomes deep and irregular, mimicking the response of intense exercise. So, if done right, kissing can be considered a great cardiovascular workout! At the same time, it's a terrific tension reliever. You shut out the world, you close your eyes and you're almost smiling. The average person will spend an estimated two weeks of their lives kissing! Ancient Egyptians kissed with their noses. Eskimos, Polynesians and Malaysians still do. In Europe, it is proper etiquette to greet friends and family by kissing them on both cheeks. Our brains have special neurons that help us find each other's lips in the dark. Saliva contains antibacterial chemicals that kill most bacteria before the germs are passed on during a kiss. Some say the extra saliva helps prevent tooth decay by cleaning out your mouth! A one-minute kiss burns 26 calories! A long kiss boosts metabolism and causes our bodies to burn sugar faster than usual. According to Guinness records, the longest documented kiss lasted 50 hours and 25 minutes by a Thai couple at an event that organized by Ripley’s Believe It or Not! in 2012 in Thailand. In some places, kissing is illegal. It was considered a crime in Hartford, Conn., for a husband to kiss his wife on Sunday! And in Cedar Rapids, Iowa, it was a crime to kiss a stranger. Learn about philematology and more fun facts plus tips about kissing at BeingGirl.com.