INCREDIBLE FACTS ABOUT HUMAN BODY

Incredible Facts about Human Body

·        The brain is more active at night than during the day. Scientists don't know yet why this is.

·        The nail on the middle finger grows faster than the other fingernails.

·        During your lifetime, you will produce enough saliva to fill two swimming pools.

·        Men have erections every hour to the hour and a half during sleep. This is because the combination of blood circulation and testosterone production can cause erections during sleep and are a necessary part of REM sleep.

·        Everyone has a unique smell, unique fingerprint, and unique tongue print.

·        The strongest muscle in the body is the human tongue.

·        The hardest bone in the human body is the jawbone.

·        Humans are the only species that produce emotional tears.

·        All babies are color blind at birth, they see only black and white.

·        It is impossible to kill yourself by choking yourself with your hands.

·        Your brain uses up about 20% of all your body's oxygen and calories.

·        A higher IQ is correlated with more dreams.

·        If you laid all of your blood vessels end to end they would stretch 60,000 miles, or around the world nearly two and a half times

·        Your cornea is the only part of your body without a blood supply. It gets its oxygen directly from the air.

·        Most babies are born with blue eyes. Exposure to ultraviolet light (the sun) and melanin are what eventually bring out their true color.

·        The speed of an incoming brain impulse is about 400 km/h.

·        Over the course of just one day, our blood ’runs’ the distance of 19,312 kilometers.

·        A human eye can distinguish up to 10 million different colors. But our brain can’t remember all of them.

·        1 square centimeter of your skin contains around a hundred pain sensors.

·        Smiling triggers 17 muscles of the face while crying activates 43. So smile more!

·        Semen normally contains 1-8 billion sperm per fluid ounces (140-300 million sperm per millimeter)

·        A human’s ears and nose never stop growing.

·        For an adult human, taking just one step uses up to 200 muscles.

·        Bone is five times stronger than a steel bar of the same width, but it is brittle and can fracture on impact

·        The body can detect taste in .0015 seconds, which is faster than the blink of an eye.

Thanks ………… please share and comments….