Apple working on using Apple Watch to continually measure blood pressure

A pair of newly-revealed patent applications show that Apple wants to make it possible for the Apple Watch to continually monitor blood pressure. Apple’s patent application, “Electrical Coupling of Pulse Transit Time (PTT) Measurement System to Heart for Blood Pressure Measurement,” asserts that it can be done without interruption to the user.
Apple WatchWilliam Gallagher for AppleInsider:Perhaps the very first health feature of the Apple Watch was its ability to sense heart ra