Artificial red blood cells, like the one shown here, could carry oxygen, therapeutic drugs and other cargo in the bloodstream. Scale bar, 2 μm. Disclaimer: AAAS and EurekAlert! are not ...

Researchers from Emory University and Georgia Tech developed a smartphone app to screen for anemia using images of a person’s fingernail beds instead of the conventional blood test.

Normal (left) and sickle cell (right) mouse red blood cells show the rigid, crescent-shaped "sickled" cells (arrows). Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

Changes in blood are detectable at age 50 and universal by 60, paving the way for spotting early signs of unhealthy aging.