Dr. Hallberg's top 6 health stories of the year

Trans fat
Trans fats being phased out by the FDA made Dr. Jon Hallber's list of the most important and intriguing health stories of 2013.
Scott Olson/Getty Images

Dr. Jon Hallberg, All Things Considered's regular medical analyst and a physician in family medicine at the University of Minnesota, counts down his top 6 most important and intriguing health stories of the past year:

1. Affordable Care Act healthcare exchange roll-out and all the glitches

2. The return of plague, polio and rickets

3. E-cigarettes: Are they harmful?

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4. New blood pressure guidelines

5. FDA phases out trans-fats

6. First real update to the classification of mental health disorders since 1994

Related: Minnesota's Mental State