After receiving a lifesaving heart transplant at the age of 34, Kelly Perkins decided to keep doing what she loved most—mountain climbing! Against incredible odds, she became the first heart transplant survivor to climb some of the world's tallest peaks, including Mount Fuji, the Matterhorn, Mount Kilimanjaro and Mount Whitney. Dr. Oz talks with Kelly and her husband, Craig, about Kelly's journey to overcome heart disease and their efforts to increase awareness for organ donation.