Random Human Body Facts

    45 facts tagged with Human Body Facts

    The average sperm cell swims at 8 inches per hour.
    76
    The human brain uses approximately as much energy as a 10 watt light bulb.
    120
    Enamel is hardest substance in the human body.
    61
    Our eyes are always the same size from birth, but our nose and ears never stop growing.
    266
    It takes twice as long to lose new muscle if you stop working out than it did to gain it.
    127