Electronic cigarettes are becoming a popular new way to help people quit smoking. But are they fixing the problem? Or just making tobacco more popular?

Smoking tobacco out of a water pipe has become very common and is often thought of as a safer alternative to smoking cigarettes. But is that belief backed up by evidence? 

Many people drink alcohol in social settings, both for fun or as a way to unwind after a hard day. But the reality of alcohol consumption across the globe can make "happy hour" seem not so happy.

Alcohol abuse can take a toll on your physical and mental health. A fraction of those who abuse alcohol get treated, and fewer still are believed to receive medication that might help.

Parents worry about their kids going off to college and drinking and driving. While this is a real concern, there may be another substance they should be worrying about.

The risks of smoking can extend beyond your own health and that of individuals breathing the secondhand smoke. They may extend to your children's choices as well.

The most common medications used to treat attention deficit hyperactivity disorder are stimulants. Tobacco is also a stimulant, so would taking medication reduce smoking among those with ADHD?

Some of the biggest killers worldwide are diseases that can largely be prevented: heart disease, chronic respiratory disease, cancers and diabetes. But it will require some effort.