Sunday, May 13, 2012
9 Facts you donot know about Brain
Sunday, May 13, 2012 | 
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art_tatto_design_extreme9 Facts you donot know about Brain
2. You used to have even more cells and connections. By the time you were born, you lost half the neurons you had as a feotus. In your teens, you lose even more as your brain streamlines itself for optimal function.
3. Your brain is big. With its many creases, folds, and layers, it would take up more than three times its area if it were spread out flat.
4. Your brain is an energy hog. Although your brain occupies only 2 percent of your body, it sucks 20 percent of your body energy when you are at rest.
5. Your brain can make new neurons. Scientists are discovering the brain makes new connections and creates neurons in some areas to meet new needs, and it does so into old age.
6. The brain can change. It can adapt from exterior and interior experiences to take on new functions. The more you repeat something—an action or a thought—the more brain space is dedicated to it. In musicians, for example, the part of the brain that controls fingers used to play an instrument is up to 130 percent larger than that section in the rest of us. While the very young brain is most adaptive, old brains can be retrained as well.
7. Your brain prunes itself. Much as a gardener prunes roses, the brain weak-ens less-used connections and strengthens useful connections, which actually improves memory.
8. Stress can shrink your brain—and meditation and exercise strengthen your brain and your ability to relieve stress.
9. Your brain’s surface itself has no sensation. You could touch it (and sur-geons do) and feel nothing. Only when the interior parts are stimulated do you feel, both tactilely and emotionally. h is anomaly allows patients to be conscious when doctors perform delicate brain surgeries.
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