Glial cells play an important role in supporting the body's central and peripheral nervous systems. Several types, each with different functions, of glial cells exist. Learn more here.

The U.S. health secretary said people should have access to experimental therapies including unregulated uses of stem cells. But some methods have resulted in blindness, tumors and other injuries.

In contrast, lung cancer in never-smokers is almost exclusively adenocarcinoma – a type which starts in mucus-producing cells – which is now the most common form of lung cancer in both smokers ...