Two things people say when they hear about research on smoking tobacco are: "Why do research on smoking? We all know it's bad for you," and "Smoking is just a bad habit. You can quit if you have enough willpower."

Now it turns out that a new study...

Did you know that there are almost twice as many suicides each year in the United States as there are murders? I was surprised to find out that in 2007, the most recent year on which the CDC provides data, there were almost 35,000 suicides in the Unites...