Groundhog Day. Black Friday. Columbus Day. No, they're not all nostalgic 90s movies. They're technically holidays. Whether they're worth celebrating — that's debatable. A cause that we can get behind, though, is World No Tobacco Day. It was created by the World Health Organization (WHO) and celebrated every year on the 31st day of May. Its mission is to bring awareness to the health complication caused by tobacco and encourage tobacco users of all kinds to once and for all quit. The American Dental Association cites many oral health impacts of tobacco products. The 5 highlighted below are widespread and not only affect your oral health but also your own vitality.