Random Human Body Facts

    45 facts tagged with Human Body Facts

    Every year your body replaces 98% of your atoms.
    119
    Your thumb is about the same size as your nose.
    124
    The adult human brain weighs about 3 pounds (1,300-1,400 g).
    99
    After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
    55
    The average sperm cell swims at 8 inches per hour.
    76
    Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
    118
    Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
    197