Random Body Facts

    64 facts tagged with Body Facts

    The average sperm cell swims at 8 inches per hour.
    76
    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
    One human hair can support 3 ounces.
    191
    You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
    19
    Sperm Made Every Heartbeat
    Sperm Made Every Heartbeat
    The human testicles can produce 1,500 sperm during every heartbeat.
    21
    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
    It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
    218