Doctors share how to the bottom of this elusive metric.

Mammographic density is a strong risk factor for breast cancer but the lack of valid fully automated methods for quantifying it has precluded its use in clinical and screening settings. We compared ...

Scientists have developed a way to measure the density of a single cell. The new method involves measuring the buoyant mass of each cell in two fluids of different densities. Measuring cell density ...

Add Yahoo as a preferred source to see more of our stories on Google. Especially when you hear some of the stats about bone health (like, that it steadily decreases once you hit 30), you might feel ...