More than half a century after the world’s first heart transplant, scientists are finding fascinating ways to improve the ...

He only got worse the next day, as they noted to the outlets that his hands and feet had turned cold, his mouth began turning blue and ... his heart started beating again. Dr. Aline Maddux ...

Getty A 4-year-old boy is lucky to be alive after his heart stopped beating for at least 14 hours ... his mouth began turning blue and his breathing became labored. They rushed him to the ...