Dear Mayo Clinic: I’ve been a smoker for years. I’m thinking about switching to electronic cigarettes or to a nicotine inhaler because I’ve heard they aren’t as bad for you as regular cigarettes. Is ...

Lots of studies have shown that cigarette smoke isn't good for a fetus. So many pregnant women use nicotine gum or skin patches or inhalers to help them stay away from cigarettes. A few years ago, ...