If you’ve ever bought a health testing kit for anything from the flu to a UTI, you’re one among many: Home health tests are a multi-billion-dollar global industry. In fact, a new one just became ...

Each year in Texas, students spend months preparing to take the oft dreaded but highly consequential State of Texas Assessments of Academic Readiness, or STAAR, exams. Their scores affect the grades ...

“Bad,” or LDL, cholesterol is a major risk factor for heart disease and most people are screened for it as part of their yearly physicals. There’s another marker in the blood that may be a better ...

After kicking off under a cloud of secrecy with a private test in Barcelona, Formula 1 2026 had official lift-off with official preseason running in Bahrain. F1 is taking on a huge rule change this ...

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 ...

Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...

The COVID-19 pandemic forced a number of changes, many of which will remain in place long after it subsides. One important but under-recognized shift could be in the field of clinical diagnostics.

A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Having a slower TUG time and standing on one leg for ...

Jay N. Yepuri, MD, MS, FACG, is a board-certified gastroenterologist and member of the Digestive Health Associates of Texas Board of Directors and Executive Committee. A liver function test checks how ...