Positron Emission Tomography, or PET scanning, a technique for tracing metabolic processes in the body, has been widely applied in clinical diagnosis and research spanning physiology, biochemistry, ...

Scientific American is the authority on science and technology for a general audience, with coverage that explains how research changes our understanding of the world and shapes our lives. First ...

The first sign of trouble for a patient with a growing brain tumor is often a seizure. Such seizures have long been considered a side effect of the tumor. But now a joint team of Columbia engineers ...

You'll want to *not* sit down before reading this. A variety of things can affect blood circulation: blood vessel health, blood pressure, thyroid function, hydration, heart health, exercise, and blood ...