It's no secret that we need calories to fuel the body's basic energy needs. Yet many of us find it difficult to take in the right amount—and the right kind—of fuel. No matter how many guidelines we're given, we still crave what we know is bad for us. And in an era where sugary and fatty snacks are often within arm's reach, resisting those cravings has become exceedingly difficult. So what's an average consumer to do? Read on for some insight into why we behave the way we do around food, and what you can do to make eating healthier a little bit easier.