The brain relies on real-time delivery of oxygen and nutrients through its microvasculature, which threads through neural ...

Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red blood cells in ways that make them less flexible and more prone to breakdown, ...

A microscopic image shows small red centers connected by networks of branched and straight filaments. The team mixed purified actin monomers with precise concentrations of two nucleation-promoting ...