A new study reveals an especially rare blood type that was not known until today – and only three people in the world have it. The discovery, which was made almost by accident, took place as part of a ...

Did you know that your blood type can make you a lifesaver? Whether you're an O- universal donor or an AB+ universal recipient, every drop counts! In the UAE, donating blood is more than a good ...

More than 100 years ago, Dr. Karl Landsteiner discovered that not all red blood cells are alike. He found that, when different people's blood was mixed, it would often clump up and curdle, destroying ...

(Douglas Sacha/Getty Images) You might not think your blood type has much to do with your health, but research suggests that it can have an effect. According to one study, there is in fact a ...