Vibrant red colonies on MacConkey agar: the ability to grow here indicates that the bacteria are resilient. The colour and growth help microbiologists identify common gut bacteria and test their ...

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 ...

Ed Cowan has kept a close watch on Sam Konstas since first spotting him four years ago, and explains why the ‘rare talent’ has the temperament to thrive in Test cricket. Agar, 31, etched his name into ...

Matt Elliott is a senior editor at CNET with a focus on laptops and streaming services. Matt has more than 20 years of experience testing and reviewing laptops. He has worked for CNET in New York and ...

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 a Cortisol Test? A cortisol test measures the level of cortisol in your blood, urine or saliva. Cortisol is a hormone that's important throughout the body for maintaining blood pressure, blood ...

A glomerular filtration rate (GFR) test is a simple blood test used to assess how effectively your kidneys are filtering waste from your blood, which is crucial for overall health. Doctors may ...

Eosinophils are a kind of white blood cell that helps fight disease. The exact role of eosinophils in your body isn't clear, but they're usually linked with allergic diseases and certain infections.