News 4 at 4

Apr 20, 2012 7:29 PM

Living Younger Longer: Vitamin K shortage, exercise, and kicking the habit

TUCSON - Today on "Living Younger Longer" on News 4 at 4, Dr. Lori Mackstaller form the Sarver Heart Center stopped by the News 4 Tucson studios to discuss some of the top medical stories of the week.

Check out the video above to watch her discussion with Allison.

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