During my recent blood test, my A1C was still high at 6.1%. Looking into it a bit further, my physician's assistant realized ...

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 ...

A high red blood cell count can occur for many reasons, including excessive cell production, changes in blood volume, or underlying medical conditions. Sometimes, the cause is unknown. Erythrocytes, ...

Scientists used donor stem cells to grow red blood cells in a laboratory. A clinical trial of these cells is underway to see if they last longer in the body compared to regular donor blood. Lab-grown ...

Your morning coffee might do more than wake you up – it could weaken donated blood. A large new study shows caffeine lowers red blood cell quality, making transfusions less effective, especially in ...

The shape of sickle cell blood cells resembles a curved blade knife called a sickle. These cells are stiff and inflexible, so they cannot move through small blood vessels as easily as healthy red ...

In 2011, a woman from the French overseas region of Guadeloupe underwent routine tests before a surgery. Strikingly, doctors could not identify her blood group, which was so unique that they did not ...

It has only recently become known that two parallel systems of blood formation exist in the body, originating from different ...

Bats modify their red blood cells to become thicker and more rigid when they hibernate – and if we can figure out how, people might one day be able to copy the process for medical treatments or ...