Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

Run-of-the mill? Middle of the road? Typical? The chance that you are correct is vanishingly small. If you're a clinician, like me, you get a LOT of medical questions. While we've all been asked to ...

Steffini Stalos, DO, FCAP, is a pathology and lab medicine physician. She is also the chief medical officer of the lab consultancy firm Blood Associates, LLC. Mean corpuscular hemoglobin concentration ...

Hemoglobin is a protein in red blood cells. It carries oxygen around your body, delivering it to tissues. Hemoglobin also carries carbon dioxide to the lungs so you can breathe it out. Iron is a part ...

When the U.S. wrestler and actor Dwayne “The Rock” Johnson was in his prime, his Body Mass Index (BMI) was around 33 kg/m², technically ‘obese’ by World Health Organization (WHO) standards. Yet no one ...

You probably already know you need calcium for strong bones and teeth. But did you know that you need normal levels of this important mineral for healthy blood vessels, muscles, and nerves, too? If ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Preparing properly for lab tests helps ensure your results are accurate and reliable. Some tests — … ...