Is the glass half-full or half-empty?  Did you know how you interpret this can affect your overall health?  A new study, published in the Psychological Science Journal, finds that having a positive outlook on life can be as good for your health as a well-balanced diet and regular exercise.  Always seeing the glass half-empty?  Turn that frown upside down and attempt to see the good in every situation.

Shine: Positive outlook and friends may be as good for you as diet and exercise, claims study