We often associate with old age forgetfulness. In fact, the fact is not always the case. In a small company can have two friends who are often forgotten. If you do not miss the vehicle keys, watches, sunglasses, cell phones usually yes. Which one are older than half a century, so many people memakluminya. Which one again? Not yet 30 years old!
Yes indeed. With age, will also decrease the body's functions, such as decreased reflex reactions, no longer taut skin, thinning hair so gray pigment, muscle deflated and no longer chewy.
The same thing happens in the brain. Especially from the age of 45 years, will lose about 50,000 brain cells every day of the cerebral cortex, which is the most clever part of the brain. The ability of the hippocampus, a brain region where memory process, also began to decline.
At the age of the 70s, brain volume decreased 10 percent every 10 years. At the age of 80 years, the decline in brain volume reached 20 percent.
Like orange peel
Form of the human brain is not interesting. The outer layer resembles an orange peel look of wrinkles that have wilted and looked like a small street that was spinning. That is an intricate maze of nerves with blood vessels and billions of cells called neurons supermini.
Neurons or brain cells are like an octopus with a nucleus and a large number of tentacles that spread in all directions. Each tentacle has thousands of bulge-like suction pads, which are also out in all directions.
Neurons work in such a way with different functions. There are three specific parts of neurons that regulate how it works. First, the action associated with the outside world like seeing the sights, listen to music, feel the heat of the sun, touch the books, or tasting the food.
Second, matters relating to the muscles, movement, and so forth. Third, related to the ability to think, remember, imagine, and imagination.
One expert neurons and Director of The Royal Institution, London, Prof. Susan Greenfild mention that one neuron can transmit chemical transmission 500 times in one second. While each transmission has a different function.
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