Random Body Facts

    64 facts tagged with Body Facts

    Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
    89
    Hypnic Jerk
    Hypnic Jerk
    When you wake up with a jolt, it's called a Hypnic Jerk. This usually happens during the lightest stages of sleep, and can happen as a natural reaction when you fall asleep in a car or airplane.
    35
    The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
    112
    If your liver stopped working, you'd die within 24 hours.
    107
    The human body contains over a billion miles of DNA.
    147
    In 1996, research found that having excessive body hair is linked to higher intelligence.
    23
    After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
    55
    A person can live without food for about a month, but only about a week without water.
    156