"People forget that there are two sides to screening, " says Dr. Barbara Yawn, director of research at Olmstead Medical Center and a member of the United States Preventive Services Task Force, a government-backed group of health care professionals that study and evaluate health screens.

FORBES: The Scary Side Of Health Testing

The Preventive Services group takes a conservative approach and tries to cherry-pick the few tests that are highly likely to lead to better health.

FORBES: On The Cover/Top Stories