ECG for Apple Watch - ECG app and irregular heart rhythm notification
Train Fitness - Automatically track your workout at the gym - hands free!
Heart for Heart - Monitor your heart in 90 seconds. For a good cause. 💓
MoovBuddy - An exercise app for back & neck pain and joint health
AliveCor Mobile ECG - A freakin' heart monitor for your smartphone
Dualnback.works - Dual N-back is a specific brain training exercise, that's been shown by research - it might improve fluid intelligence.