It's important to understand the whole picture first. Thanks to the strides made in mail-in saliva and fecal testing, just about anyone can take an at-home test to determine a myriad of personal ...

Blood is made up of red blood cells, white blood cells, platelets, and plasma. Markers called antigens are found on the surface of red blood cells, and differences in these markers classify various ...

Adam Taylor is affiliated with the Anatomical Society. You are probably aware of the two main blood group systems: the AB system and the rhesus system. Under the AB system, there are four main blood ...

Donors are being sought for O-positive blood after a reduction in stock. It was thought that the level could drop further owing to typically fewer donations at this time of year. Eyitayo Fakunle, a ...

Blood – everyone's got it. In fact, an adult who weighs between 150 and 180 pounds has around 1.2 to 1.5 gallons of blood in their body. This makes up approximately 10% of an adult’s weight. Blood ...

The San Diego Blood Bank put out a call Monday for donors with type O negative and O positive blood, as the bank has reached "critically low" levels of both. Type O negative is the universal blood ...