Random Human Body Facts

    45 facts tagged with Human Body Facts

    The adult human brain weighs about 3 pounds (1,300-1,400 g).
    99
    Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
    118
    Our eyes are always the same size from birth, but our nose and ears never stop growing.
    266
    The human brain uses approximately as much energy as a 10 watt light bulb.
    120
    It takes twice as long to lose new muscle if you stop working out than it did to gain it.
    127