Thursday is World Sickle Cell Awareness Day and the American Red Cross in Liverpool, N.Y., hosted a blood drive. Sickle cell disease is something you're born with that can make everyday activities ...

The body produces millions of red blood cells each day in the bone marrow. They circulate around the body for about 120 days, then go to the liver and spleen, which destroy them and recycle their ...

Fish kills can start when levels reach 10,000 cells per liter. In 20 Florida locations, concentrations were higher than 100,000. Health alerts for red tide have been issued in Lee, Collier counties.