Study: More U.S. adults told by physicians to exercise

A government survey found nearly 33 percent of adults who saw a doctor in the previous year said they were told to exercise. That was up from about 23 percent in 2000. More than one third of U.S. adults are obese, a statistic that's held steady for nearly a decade.

By: Mike Stobbe, AP Medical Writer

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Study: More U.S. adults told by physicians to exercise