Random Human Body Facts

    45 facts tagged with Human Body Facts

    The average sperm cell swims at 8 inches per hour.
    76
    Enamel is hardest substance in the human body.
    61
    The human brain doesn't stop developing until about 25 years old.
    102
    The human brain uses approximately as much energy as a 10 watt light bulb.
    120
    If you are cold you are more likely to be hungry because you use energy to keep warm.
    143