In a medical emergency, every second counts. Quick access to accurate health information can mean the difference between life and death ...

To set up heart rate notifications, go to the Apple Watch app on your iPhone, tap My Watch, tap Heart, tap High Heart Rate ...

The iPhone's Health app includes a built-in pedometer to track steps. Set up your profile, and view step data in the Summary tab.

The iPhone is customizable and built with accessibility and user-friendliness in mind. With a few adjustments, you can make them easier for seniors to use.

The iPhone doesn't offer a year-in-review recap for the Health and Fitness apps, but there's a third-party app for that.

According to Bloomberg's Apple insider Mark Gurman, the new and upgraded health features are part of what is being called Project Mulberry. Gurman said they could be ...