Random Body Facts

    64 facts tagged with Body Facts

    If you hold farts in during the day, they'll just come out when you sleep.
    16
    Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
    89
    The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
    21
    It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
    217
    The average sperm cell swims at 8 inches per hour.
    76
    The human sigh acts as a physiological reset button.
    23
    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
    Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
    118