Diet

It's no secret that we need calories to fuel our 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.

Depression

Some 15 million Americans struggle with depression—an illness that comes in many forms—from major depression and seasonal affective disorder, to dysthymia and <a href="http://www.psychologytoday.com/conditions/bipolar-disorder"