Health and Activity: What's New in iOS 13

Apple added new features and new functionality to most of its built-in apps, including Health and Activity, both of which have either changed significantly or have major new features worth noting.This guide goes over the changes that Apple made to the Health app and the Activity app in iOS 13.
Health App
Summary
Apple in iOS 13 entirely overhauled the Health app, doing away with the iOS 12 interface which featured four tabs for the "Today" calendar, "Health Data," "Sources," and "Medical ID."The