Most people think you have to have an Apple Watch to use the health app or it's only helpful to track fitness, calories or food, but there is one great use for this application you might not know about, the ability to have personal information handy in case of emergency.
My daughter recently got her drivers license and like every parent I worry about her when she is on the road late at night driving by herself. One small measure of comfort is know that If she were to get in an accident and someone needed her personal information or an emergency contact number, all they would need to do is grab her ever present iPhone (never used while driving of course!) and access the data from the lock screen.
To set things up just open the Apple Health app and select "Medical ID" in the lower right corner. To create a medical ID just select the red "Create Medical ID" text and fill in the data.
Apple has added a lot of basic medical information fields but you can also enter data in the notes section. By default you can add medical conditions, allergies, medications you might be on, blood type as well as other personal information. You can also enter one or more emergency contacts. Make sure you have selected "Show When Locked" before hitting the done button.
Now here's the best part, when your phone is locked and someone needs to access this information they just need to select the "Emergency" button at the bottoms of the lock screen then "Medical ID" on the next screen.
Obviously this is information can save your life in the event of an accident but it's also extremely helpful if you loose your phone. Anyone who finds your phone can find a contact they can call to return your phone to you.
Apple is great at adding little details that make your phone an awesome device to use. Medical ID is a well thought out addition that can literally save your life.