As we hit the New Year, many make resolutions to stay in shape. New research is revealing some surprising numbers about just how effective exercise can be in warding off the aging process. CBS News correspondent Dr. Jon LaPook introduces us to one group that is living proof.
For anyone who thinks they're too old for exercise, meet the ladies of the Louisiana Tigerettes.
The Tigerettes have won seven gold medals at the U.S. Senior Olympics in a style that might not be considered very grandmotherly.
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