Random Human Body Facts

    45 facts tagged with Human Body Facts

    The human body contains over a billion miles of DNA.
    147
    The human brain doesn't stop developing until about 25 years old.
    102
    Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
    197
    The average sperm cell swims at 8 inches per hour.
    76
    Your thumb is about the same size as your nose.
    124
    Enamel is hardest substance in the human body.
    61