Practice smart by starting with easier problems to build confidence, recognizing common coding patterns, and managing your ...

A calprotectin stool test is a noninvasive way to measure intestinal inflammation. It can help diagnose conditions like inflammatory bowel disease (IBD), gastrointestinal infections, and colorectal or ...

A metabolism test provides a snapshot of certain hormone levels to understand how your body converts calories into the energy that fuels every physical, biological, and mental activity. These tests ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...

You have two carotid arteries in your neck that are responsible for supplying oxygen-rich blood to your head and brain. Like all arteries, carotid arteries are made up of three layers: An outer ...