A 22-year-old man was saved by his Apple watch when it detected an irregular heartbeat. Jorge Cox went to the doctor after his watch picked up some worrying heart rate readings while he wasn't doing any physical activity. The preforming arts student was diagnosed with aortic regurgitation, also known as a leaky heart valve, and had unknowingly suffered from the condition since birth. Cox's heart rate is now back to normal following a five-hour surgery.