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

We found the best walking apps for everyone (regardless of your goals), from data lovers to guided-workout enthusiasts.

Stay active and hit your fitness goals with the best step trackers, from simple pedometers to feature-packed smartwatches.

You can take your temperature using your iPhone by linking a smart thermometer like Kinsa's QuickCare and Smart Ear products.

FitBits track many statistics, including calories burned. Here's how a Fitbit calculates the calories you've burned, and how ...