Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

How well do you understand the world of words? Verbal ability includes the capacity to reason using language, and to use words appropriately and in context. This test measures some of these abilities.

Magnesium is one of the major minerals your body needs to function properly. You get it from foods and supplements. It's also an ingredient in some medicines such as antacids and laxatives. More than ...

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 ...

If you have diabetes or prediabetes, regularly monitoring your A1C blood sugar level is important for managing your condition and maintaining optimum health. A1C monitoring can also be used to ...