Free-floating DNA carrying cancerous mutations was detected in blood three years before any other signs of cancer appeared. If approved as a test, doctors might detect cancers sooner and treat them ...

Following a heart transplant, patients must undergo surgical biopsies so that clinicians can monitor for signs of organ rejection. A new study shows the promise of a biomarker that could allow doctors ...

“The benefits people report most often are way more energy, better workouts and faster recovery, higher libido, clearer ...

What if a blood test could reveal the pace of our aging – and the diseases that may lie ahead? The labs of Profs. Liran ...

If your libido’s dried up and your energy levels are dipping, it could be a hormone problem. Here's how to find out if it is.

Several other medical conditions can mimic the symptoms of low testosterone, including depression, sleep apnea, ...

From Joe Rogan to Dax Shepard, men are taking testosterone supplements to increase virility. In reality, it's harming their ...