Dementia's crippling costs, update on pig heart transplant, and when snoring becomes dangerous

Larry Faucette, 58, pictured at left, was the second person to receive a genetically modified pig heart. Dr. Bartley Griffith, professor of surgery at the University of Maryland School of Medicine who performed the surgery, is shown at right. LIFE-SAVING EXPERIMENT – Surgeons give an update on a patient with end-stage cardiac disease a month after he received a genetically modified pig heart. BREAST CANCER BREAKTHROUGH – Experts claim artificial intelligence could predict a woman's risk years before a diagnosis is given. NOT-SO-SWEET DREAMS – When does snoring go from a common annoyance to a sign of a serious condition?