My mother is very ill. She has suffered half a dozen cardiac arrests and has had a major stroke. She has global aphasia caused by that stroke, atherosclerosis, peripheral arterial disease, and overall valvular damage, among other things. She now has an artificial cardiac valve. Her heart needs to be monitored in frequent intervals. That led me to contemplate whether it might not be a good idea to buy her an iPhone and an Apple watch. So, my question is whether anyone here is using the Apple watch to monitor and document their heart activities for medical purposes? I don't mean for the watch to replace professional analysis, but I am wondering whether the Apple watch could be a useful "companion" and a potential "life-saver"? What are your thoughts/experiences?