Random Human Body Facts

    45 facts tagged with Human Body Facts

    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
    The adult human brain weighs about 3 pounds (1,300-1,400 g).
    99
    Yawns are more contagious among people with closer relationships.
    163
    After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
    55