"There's an app for that." Who'd have ever thought that would be the case for something as fundamental as a ruler or a measuring tape? But here we are. If you're reading this, you may already know ...

Open the Health app on your iPhone and navigate to the Heart section, or tap your profile icon and find the health checklist.

You can use the ECG app on your Apple Watch to monitor your heart rate and detect irregularities, in which case you should ...

Before diving into the methods, it's essential to understand the difference between altitude and elevation. Altitude refers to the height of an object or place above a given planetary reference plane, ...