Human bodies make 2 million red blood cells per second. They each live for 120 days and spend that time zooming completely around the body every 20 seconds, carrying oxygen from the lungs to other ...

Learn how to treat a sickle cell disease crisis at home and when you should go to a medical center for more care.

The American Red Cross says one in three Black donors is a match for a sickle cell disease patient. The ideal donors have ...

Your blood cells work tirelessly to keep you alive, carrying oxygen throughout your body and fighting off infections. But hidden in your daily meals are foods that can silently compromise these vital ...

Red blood cells are the most abundant cells in the body. It has long been known that when red blood cells break down or anemia occurs due to bleeding, the hormone erythropoietin (EPO) increases, ...

Scientists have long been puzzled by how maturing red blood cells manage to produce all the hemoglobin they need to carry oxygen to tissues, even after shedding the vital structures they need to ...

The immune system consists of inflammatory and regulatory T cells (Tregs) that promote or dampen immune activity, respectively. These cells react to specific antigens that specialized cells like ...

Quiz: Which blood tests matter most for aging adults? Most people know they should get blood work done. Fewer know what each ...

(Douglas Sacha/Getty Images) You might not think your blood type has much to do with your health, but research suggests that ...