How to Stop Worrying

By John Swartzberg, M.D.

We've evolved to worry. From an evolutionary standpoint, it makes sense that we do need to worry about certain things, particularly those that represent imminent danger. We may see ourselves as straddling the top of the evolutionary ladder, but it wasn't all that long ago that humans -- just another animal, after all -- were frequently prey for bigger, fiercer animals like saber-toothed cats and cave bears. Worry, that sense of scanning the horizon for something that might be a threat and cue the primal fight-or-flight response, was what kept our primitive ancestors alive.

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