Todays Fact About The Brain

The human brain is the most complex and least understood part of the human anatomy. There may be a lot we don’t know, but here are a few interesting facts that we’ve got covered.

1. Nerve impulses to and from the brain travel as fast as 170 miles per hour. Ever wonder how you can react so fast to things around you or why that stubbed toe hurts right away? It’s due to the super-speedy movement of nerve impulses from your brain to the rest of your body and vice versa, bringing reactions at the speed of a high powered luxury sports car.
2. The brain operates on the same amount of power as 10-watt light bulb. The cartoon image of a light bulb over your head when a great thought occurs isn’t too far off the mark. Your brain generates as much energy as a small light bulb even when you’re sleeping.
3. The human brain cell can hold 5 times as much information as the Encyclopedia Britannica. Or any other encyclopedia for that matter. Scientists have yet to settle on a definitive amount, but the storage capacity of the brain in electronic terms is thought to be between 3 or even 1,000 terabytes. The National Archives of Britain, containing over 900 years of history, only takes up 70 terabytes, making your brain’s memory power pretty darn impressive.
4. Your brain uses 20% of the oxygen that enters your bloodstream. The brain only makes up about 2% of our body mass, yet consumes more oxygen than any other organ in the body, making it extremely susceptible to damage related to oxygen deprivation. So breathe deep to keep your brain happy and swimming in oxygenated cells.
5. The brain is much more active at night than during the day.Logically, you would think that all the moving around, complicated calculations and tasks and general interaction we do on a daily basis during our working hours would take a lot more brain power than, say, lying in bed. Turns out, the opposite is true. When you turn off your brain turns on. Scientists don’t yet know why this is but you can thank the hard work of your brain while you sleep for all those pleasant dreams.
6. Scientists say the higher your I.Q. the more you dream. While this may be true, don’t take it as a sign you’re mentally lacking if you can’t recall your dreams. Most of us don’t remember many of our dreams and the average length of most dreams is only 2-3 seconds–barely long enough to register.
7. Neurons continue to grow throughout human life. For years scientists and doctors thought that brain and neural tissue couldn’t grow or regenerate. While it doesn’t act in the same manner as tissues in many other parts of the body, neurons can and do grow throughout your life, adding a whole new dimension to the study of the brain and the illnesses that affect it.
8. Information travels at different speeds within different types of neurons. Not all neurons are the same. There are a few different types within the body and transmission along these different kinds can be as slow as 0.5 meters/sec or as fast as 120 meters/sec.
9. The brain itself cannot feel pain. While the brain might be the pain center when you cut your finger or burn yourself, the brain itself does not have pain receptors and cannot feel pain. That doesn’t mean your head can’t hurt. The brain is surrounded by loads of tissues, nerves and blood vessels that are plenty receptive to pain and can give you a pounding headache.
10. 80% of the brain is water. Your brain isn’t the firm, gray mass you’ve seen on TV. Living brain tissue is a squishy, pink and jelly-like organ thanks to the loads of blood and high water content of the tissue. So the next time you’re feeling dehydrated get a drink to keep your brain hydrated.

TODAYS  Facts          TODAYS FACT : Dream In Our Dreams We Only See Faces That We already Know Our mind is not inventing faces – in our dreams we see real faces of real people that we have seen during our life but may not know or remember. We have all seen hundreds of thousands of faces throughout our lives, so we have an endless supply of characters for our brain to utilize during our dreams. Dreaming can help you learn. If you’re studying for a test or trying to learn a new task, you might consider taking a nap or heading to bed early rather than hovering over a textbook an hour longer. Here’s why: When the brain dreams, it helps you learn and solve problems, say researchers at Harvard Medical School. In a study that appeared in a recent issue of Current Biology, researchers report that dreams are the brain’s way of processing, integrating and understanding new information. To improve the quality of your sleep—and your brain’s ability to learn—avoid noise in the bedroom, such as the TV, which may negatively impact the length and quality of dreams Just like men, women can have orgasms during dreams. Did you think only men experience this phenomenon? Not true, says Barbara Bartlik , MD, a psychiatrist and sex therapist in New York. Warning, further reading may produce blushing: “Women have orgasms during their sleep, just as men do,” she says. “These orgasms often accompany erotic dreams, but they also may occur during dreams of a non erotic nature.” When women dream, she says, it’s not uncommon for their genitals to become engorged and lubricated. “This occurs during REM sleep, which happens several times during the night,” she says. A similar thing happens to men. “Men get erections during REM sleep, whether or not the man is having an erotic dream.” The most common dream? Your spouse is cheating. If you’ve ever woken up in a cold sweat after dreaming about your husband’s extramarital escapade with your best friend, you’re not alone, says Lauri Quinn Loewenberg, a dream expert, author and media personality. “The most commonly reported dream is the one where your mate is cheating,” she says. Loewenberg conducted a survey of more than 5,000 people, and found that the infidelity dream is the nightmare that haunts most people—sometimes on a recurring basis. It rarely has anything to do with an actual affair, she explains, but rather the common and universal fear of being wronged or left alone. You can have several—even a dozen—dreams in one night. It’s not just one dream per night, but rather dozens of them, say experts—you just may not remember them all. “We dream every 90 minutes throughout the night, with each cycle of dreaming being longer than the previous,” explains Loewenberg. “The first dream of the night is about 5 minutes long and the last dream you have before awakening can be 45 minutes to an hour long.” It is estimated that most people have more than 100,000 dreams in a lifetime. You can linger in a dream after waking. Have you ever woken up from such a beautiful, perfect dream that you wished you could go back to sleep to soak it all up (you know, the dream about George Clooney?)? You can! Just lie still—don’t move a muscle—and you can remain in a semi-dreamlike state for a few minutes. “The best way to remember your dreams is to simply stay put when you wake up,” says Loewenberg. “Remain in the position you woke up in, because that is the position you were dreaming in. When you move your body, you disconnect yourself from the dream you were just in seconds ago.”  Even bizarre dreams can be interpreted.  While it can be hard to believe that an oddball dream about your mother, a circus and a snowstorm can have any bearing on real life, there may be symbolism and potential meaning to be mined in every dream—you just have to look for it, says Harvard-trained psychotherapist Jeffrey Sumber. "The meaning of our dreams oftentimes relates to things we are needing to understand about ourselves and the world around us,” he says. Instead of shrugging off strange dreams, think about how they make you feel. “We tend to dismiss these dreams due to the strange components, yet it is the feeling we have in these dreams that matters most,” he explains. “Sometimes the circus and the snowstorm are just fillers that allow us to process the range of emotions we feel about our mother and give us the necessary distraction so we can actually experience that spectrum of emotion.” Recurring dreams may be your mind’s way of telling you something.  Do you have the same nightmare over and over again? Loewenberg suggests looking for underlying messages in recurring dreams so that you can rid yourself of them. For example, a common recurring nightmare people have involves losing or cracking their teeth. For this dream, she recommends that people think about what your teeth and your mouth represent. “To the dreaming mind, your teeth, as well as any part of your mouth, are symbolic of your words,” she says. “Paying attention to your teeth dreams helps you to monitor and improve the way you communicate.” You can control your dreams.  The premise of the new movie Inception is that people can take the reins of their dreams and make them what they want them to be. But it may not just be a Hollywood fantasy. According to the results of a new survey of 3,000 people, dream control, or “lucid dreaming” may be a real thing. In fact, 64.9 percent of participants reported being aware they were dreaming within a dream, and 34 percent said they can sometimes control what happens in their dreams. Taking charge of the content of your dreams isn’t a skill everyone has, but it can be developed, says Kelly Bulkeley, PhD, a dream researcher and visiting scholar at the Graduate Theological Union in Berkley, California. The technique is particularly useful for people who suffer from recurring nightmares, he says. Dr. Bulkeley suggests giving yourself a pep talk of sorts before you go to sleep by saying: “If I have that dream again, I’m going to try to remember that’s it’s only a dream, and be aware of that.” When you learn to be aware that you are dreaming—within a dream—you not only have the power to steer yourself away from the monster and into the arms of Brad Pitt, for instance, but you train your mind to avoid nightmares in the first place. “Lucid dreaming enhances your ability to learn from the dream state,” says Dr. Bulkeley.