A pulse oximeter is a device that clips on your finger, toe, or earlobe to measure blood oxygen saturation. Here's how it works and how to read it.

Your systolic blood pressure and diastolic blood pressure describe the pressure on your arteries at different points in your ...

This type of cuffing season lasts all year long. High blood pressure, also known as hypertension, is a common problem that affects about 48% of US adults. An estimated 70% will experience it at some ...

A pacemaker is a small device that can send electrical signals to your heart. Here's who needs a pacemaker and how it works.