There are around 10.5 pints of blood in the average human adult body, but this can vary based on factors such as a person’s age and size. It accounts for around 7–8% of an adult’s body weight.

“The best outcomes, explains Dr. Modak, “occur when the medication is administered within 3 to 4.5 hours of the onset of ...

All blood in the human body is red in color. ... This occurs when blood flow is not enough to sustain organ function. This occurs in stages, with the first stage involving a loss of up to 15%.

In the human body, blood is delivered into the brain from surface arteries through penetrating arterioles, ... This use-dependent increase in local blood flow (functional hyperemia), ...