It may seem like a very simple task, but it actually requires several systems to work together. Here’s what to know.

A sample of your blood can reveal much about your health. But it can be hard to know which blood tests are truly worth taking ...

A vitamin deficiency test can reveal if you’re low on folate, iron, vitamin B12, and more, but you may need guidance to interpret the results. See our dietitian’s take on some of the best vitamin ...

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

Home A1C testing can be as accurate as in-person laboratory testing, but it’s important to follow the test instructions exactly to get accurate results. Your A1C is a snapshot of your average blood ...

If you live with performance anxiety, taking a test can be overwhelming. But test anxiety can be managed and these tips may help. Test anxiety is a common form of performance anxiety, which can create ...

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 ...

Shoulder problems are one of the most common complaints that doctors need to diagnose. Speed’s test and Yergason’s test are both ways for your doctor to physically examine the area around your ...

Welcome to Testosterone HQ—Men's Health's guide to the exciting, complicated, and revolutionary world of testosterone. For everything you need to know about T, click here. Important: not all at-home ...

The McMurray test is a physical examination doctors use for knee injuries. A positive McMurray test means a person likely has a meniscal tear, otherwise known as a knee injury. The femur and tibia are ...