Posted 4:29 PM 4/20/2012 : 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.