Every year, millions of adults in the United States try to lose weight. Along with exercise, dieting is one of the most common methods used to promote weight loss. However, not all diets are created ...

One evening in the early 1970s, Michael Pachovas and a few friends wheeled themselves to a curb in Berkeley, Calif., poured cement into the form of a crude ramp, and rolled off into the night. 1 For ...