caffeine Many Americans regularly consume caffeine, the most widely used behaviorally active drug in the world. But does caffeine cause more than just a morning boost?

Over the years, caffeine has been singled out as a possible factor in cancer and birth defects, among others. Here is a look at why most experts say that moderate caffeine intake is not a habit worth losing sleep over and advice for poeple who drink too much coffee and want to cut back.

Energy drinks are the latest entry into the beverage market and perhaps the most potent way to get a caffeine fix. The popularity of these carbonated, caffeine-loaded drinks has skyrocketed since they first appeared on the market in 1997. They are particularly popular among the younger generation, including teenagers. Does the entry of another caffeine-containing concoction into the marketplace prove yet again that we are a nation of addicts?