As the calendar has turned to February, the arrival of the 2026 NTT INDYCAR SERIES season is getting real as teams prepare for two major preseason tests in the next two weeks. Ten teams are heading to ...

“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 a behind-closed-doors shakedown in Barcelona, Formula 1's 2026 season build-up has moved into full view with teams heading to Bahrain for official preseason testing. With all 11 new cars on ...

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 ...

Formula 1's preparations for its new era in 2026 come to a conclusion with one last test in Bahrain as the new racing campaign draws ever nearer. After the private week of running in Barcelona in ...

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 start of the new Formula 1 season gets ever closer with the teams heading to Bahrain for two preseason testing events starting on Wednesday. The cars have already had a run out in Barcelona behind ...

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 ...

Since the emergence of COVID-19 in late 2019, the gold standard in testing for the disease has been a nuclear-derived technique: real-time reverse transcription–polymerase chain reaction, or real-time ...

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 ...