Add Yahoo as a preferred source to see more of our stories on Google. Brain image Reduced blood flow to the brain is thought to be a key factor in many forms of dementia, including Alzheimer's, and ...

White blood cells are important foot soldiers in the immune system, but their numbers can be cut by health conditions or treatments like chemotherapy. Yale scientists have now discovered a molecule ...

The bone marrow is the central reservoir for leukocytes, which include specialized populations such as neutrophils, monocytes, and B lymphocytes. Although there are many studies of how leukocyte ...

After a long trail race, some of your red blood cells may not bend the way they should. That matters because red blood cells have a tight job description.

White blood cells, or leukocytes, are the body's first and second lines of defense against foreign organisms and particles. However, few drugs target these cells' production and movement for ...

Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red ...

Cornell researchers have uncovered a built-in molecular "gate" that controls the production of the molecule nitric oxide, a crucial signaling molecule throughout biology that in humans helps regulate ...

Treatment with a molecule known as A485 can quickly and temporarily increase levels of white blood cells, a critical part of the body's immune system, an effect that is difficult to deliver with ...

In a surprising discovery, a 'sticky molecule' that occurs naturally in our blood vessels could be both a culprit behind blood clots and organ failure during COVID and long COVID and the key to new ...

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes than people living closer to sea level. But the mechanism of this protection ...