Random Human Body Facts

    45 facts tagged with Human Body Facts

    It takes about 20 seconds for a red blood cell to circle the whole body.
    102
    Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
    118
    Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
    92
    The adult human brain weighs about 3 pounds (1,300-1,400 g).
    99