Random Body Facts

    64 facts tagged with Body Facts

    The average sperm cell swims at 8 inches per hour.
    76
    There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
    22
    In 1996, research found that having excessive body hair is linked to higher intelligence.
    23
    All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
    22
    For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
    515
    If you are cold you are more likely to be hungry because you use energy to keep warm.
    144
    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 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