When most of us think of a serious medical emergency, we usually think of sudden events such as heart attacks, strokes or serious injuries from a car crash. But some threats develop quietly, with ...

Secondary polycythemia, also known as secondary erythrocytosis or secondary erythrocythemia, is a rare condition in which your body produces an excess amount of red blood cells. This overproduction of ...

From spring break to summer vacations, we're heading into the time of year where people like to travel. But if you're going a long distance, there's a potential danger that you should know about. That ...

"Thick" blood can cause heart attack and stroke, but also prevent them. Scientists at Heidelberg University Hospital have explained the mechanism of this clinical paradox for the first time on an ...