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.

Normal blood vessels feature rings of proteins called elastins that enable them to stretch as blood flows ... with many questions still to answer about their behavior in the human body, ...

Scientists from the French Blood Establishment (EFS) has successfully identified the ultra-rare 48 th blood type group, known ...