Apple’s Upcoming Health App Is the Start of Something Huge

Apple is poised to launch a body-monitoring app known as Healthbook, tracking everything from sleep to nutrition to exercise to vital signs.

That’s the word from 9-to-5 Mac, which published a detailed look at the app on Monday, and as described, this project could prove to be a tipping point for mobile healthcare — a computing sector that has long been on the brink of explosive popularity without actually breaking through.