A computer-generated image of red blood cells. Nitric oxide—known by the formula NO—is so vital for humans’ internal physiological processes that it was crowned Molecule of the Year in 1992. It plays ...

Most people rarely think about how they breathe unless experiencing respiratory distress. Yet emerging research suggests that the pathway through which we inhale and exhale – nose versus mouth – ...

Scientists have found how human cells distribute and maintain their cholesterol levels, aiding in research in neurodegenerative diseases such as Alzheimer's disease, as well as cardiovascular diseases ...

Human evolution is often told as a tidy story of adaptation, yet some of our most familiar body parts still defy straightforward explanation. From the jut of the human chin to the curve of the outer ...