They're hard to follow and easy to hate. Research suggests that most diets backfire in the long run, and some can even be hazardous to your health. Yet for some people, diets deliver decent results. So what gives? We explore what really makes diets effective when they do work — and what's to blame when they don't.
New Year, new plan, right? Great, but don't just hop on the first workout train out of the station. Instead, step back: Examine your goals, your desires, your personality, your life. A little self-awareness now could prevent exercise derailment down the track.