The researchers observed a stark contrast to patterns of human aging in blood. Mice maintain diverse blood stem cells throughout their lives, without the same collapse into a few dominant clones ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years ...

They found hematopoietic stem cells (HSCs) in human lung tissue that make red blood cells, as well as megakaryocytes, which produce the platelets that form blood clots.