On June 28, the Catholic Church celebrates St. Irenaeus of Lyon, who as a boy sat at the feet of Polycarp, eagerly listening to the sermons of the early Christian bishop and disciple of the apostle ...

For decades, scientists have been trying to create artificial blood to alleviate shortages and prevent people from bleeding to death. But those efforts have been repeatedly frustrated by failure. For ...

Blood tests are performed to measure the levels of certain substances in the blood and detect disease. The tests involve ...

For decades, scientists have been trying to create artificial blood for first aid after accidents or in war. Well, those efforts have failed so far, but scientists are now optimistic they may be ...