A new misery index from the National Weather Service calls this winter one of the worst in a long time. Dr. Tara Narula, a cardiologist at Lenox Hill Hospital, in New York - and a new CBS News ... more 
A new misery index from the National Weather Service calls this winter one of the worst in a long time. Dr. Tara Narula, a cardiologist at Lenox Hill Hospital, in New York - and a new CBS News contributor - talks to the "CBS This Morning" co-hosts about the hidden toll the cold weather can take on your heart. less 
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Thu, Feb 27, 2014 12:40 PM EST