Random Human Body Facts

    45 facts tagged with Human Body Facts

    It takes twice as long to lose new muscle if you stop working out than it did to gain it.
    127
    It takes about 20 seconds for a red blood cell to circle the whole body.
    102
    The human brain uses approximately as much energy as a 10 watt light bulb.
    120
    Every year your body replaces 98% of your atoms.
    119
    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
    After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
    55