Heart Health: Will exercising really help my heart?

NEW YORK -- Exercising really does do wonders for the heart.

David Engel, Associate Professor of Medicine at NewYork-Presbyterian Columbia University Medical Center, explains why running is very beneficial for the heart in the video player above.

Engel also delves into how one should/should not feel while exercising, why some doctors recommend an exam before starting to train and what's the least someone should do when it comes to exercising and the heart.