In recent years, vaping has become a popular trend as a supposedly safer alternative to smoking. But, there are concerns about how it affects our heart health. Let's take a closer look at vaping and its impact on our cardiovascular system to separate fact from fiction. Vaping is when you inhale a liquid, usually containing nicotine and flavors, through an e-cigarette. Unlike regular cigarettes that burn tobacco, e-cigarettes heat up a liquid to create vapor that you breathe in. The vapor from e-cigarettes usually contains propylene glycol, vegetable glycerin, nicotine, flavors, and other additives. While these ingredients are considered safe in food and cosmetics, there are concerns about inhaling them long-term.