Healthy and Harmful "Highs"

During a routine check-up in 2010 to prepare for her second child, former Olympic gymnast Shannon Miller was diagnosed with a rare form of ovarian cancer. See how she overcame the odds and is once again a mother-to-be.

An irregular heartbeat can lead to serious health problems. Dr. Freda Lewis-Hall, Chief Medical Officer of Pfizer, and ER physician Dr. Travis Stork have a heart-to-heart discussion about atrial fibrillation.

An irregular heartbeat can lead to serious health problems. Dr. Freda Lewis-Hall, Chief Medical Officer of Pfizer, and E.R. physician Dr. Travis Stork have a heart-to-heart discussion about atrial fibrillation.