Stephen Pollard writes about how a high heart rate alert from his Apple Watch helped diagnose a potentially serious drug interaction issue. He also notes that during that night, his Apple Watch warned him of a steep increase in his heart rate despite him being in bed, but he attributed it to his restlessness and overall discomfort. Enter, the Apple Watch of it all:More urgently, was I suffering heart palpitations? It was vital that the rate started to come down now I had taken my last dose. Pollard was able to use his Apple Watch to monitor his heart rate and make sure it was coming down.