Sometimes we do not even think how many interesting and complex processes going on inside us every day. One of the important components of the human body is of course blood. In the adult heart pumps about the day her 10,000 liters! I suggest you learn some interesting facts about her.

74-year-old Australian James Harrison donated blood about 1000 times. In his rare blood contains antibodies that help newborns survive with severe anemia. According to rough estimates, thanks to his donation, was able to save more than two million babies.