Random Fascinating Facts

    45 facts tagged with Fascinating Facts

    Sperm Made Every Heartbeat
    Sperm Made Every Heartbeat
    The human testicles can produce 1,500 sperm during every heartbeat.
    21
    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
    An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
    82
    A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
    140
    The largest breed of rabbit is the Flemish Giant.
    65
    The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
    12
    Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
    31
    You forget 90% of your dreams.
    256