The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body. Water ...

Men who had given blood more than 100 times in their life were more likely to have blood cells carrying certain beneficial mutations, suggesting that donating blood promotes the growth of these cells ...

Our blood consists of many cell types that develop through different stages from a precursor type -- the blood stem cell. An international research team has now investigated the developmental pathways ...

Every second, an adult generates around five million new blood cells to replace aging or dying ones, making the blood system a highly regenerative organ.

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 ...

The researchers next showed that when macrophages were exposed to inflammatory signals, their activity changed alongside ...

According to new findings from University of Michigan scientists, eating too much fat could seriously hobble your immune ...

Women have a higher proportion of key immune cells between puberty and menopause, which may be linked to the sex hormone ...

A new study published in Science by a team of scientists across five continents led by King Abdullah University of Science ...

The agency OK’d an artificial vessel to restore blood flow in patients, even though its own scientists flagged questionable ...

Chronic lymphocytic leukemia (CLL) is a slow-growing cancer that affects white blood cells. Survival rates tend to be high, but these may vary. Leukemia is a type of cancer involving human blood ...