We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Brishette Mendoza and Amadou Diallo We are no longer updating this article.

Blood tests can’t confirm multiple sclerosis (MS), but they help rule out other conditions with similar symptoms like Lyme disease, lupus, anemia, thyroid disease, and vitamin deficiencies. Doctors ...

Genetic testing involves the detection of specific alleles, mutations, genotypes or karyotypes that are associated with heritable traits, diseases or predispositions to disease for the individual or ...

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 ...

Kaitlin Sullivan is a health and science journalist based in Colorado. She's been part of multiple award-winning investigations into health topics including the international medical device industry ...

A mean platelet volume (MPV) test measures the average size of your platelets, which are small blood cells that help with blood clotting. Typical MPV levels range from 7 to 13 femtoliters. High MPV ...

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 ...

What Is Prostate-Specific Antigen? Your prostate is a gland that makes seminal fluid, which nourishes and transports your sperm when you ejaculate. It's about the size of a walnut and surrounds your ...

Going to the doctor for an annual checkup may not be the most exciting thing you can think of, but don't wait to get a screening test for the most common cancers that affect men. They're easier to ...

Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. A housing unit, whether an apartment or a single-family house, is a distinct living space whose residents have ...