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How much of the human brain is used?

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Sure, some parts of your brain are working harder than others at any given time. But 90 percent of your brain isn’t useless filler. Magnetic resonance imaging shows that most of the human brain is active most of the time. In the course of a day, you use just about every part of your brain. read more

The hosts used magnetoencephalography and functional magnetic resonance imaging to scan the brain of someone attempting a complicated mental task, and found that over 10%, as much as 35%, was used during the course of their test. read more

"Let's put it this way: the brain represents three percent of the body's weight and uses 20 percent of the body's energy." So that settles it, once and for all—with all due respect to Mr. Freeman, who shouldn't take this debunking personally. read more

The average human brain weighs about three pounds and comprises the hefty cerebrum, which is the largest portion and performs all higher cognitive functions; the cerebellum, responsible for motor functions, such as the coordination of movement and balance; and the brain stem, dedicated to involuntary functions like breathing. read more

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The Nervous System Chapter ppt video online download
Source: slideplayer.com

Quote

Whoever would not remain in complete ignorance of the resources which cause him to act; whoever would seize, at a single philosophical glance, the nature of man and animals, and their relations to external objects; whoever would establish, on the intellectual and moral functions, a solid doctrine of mental diseases, of the general and governing influence of the brain in the states of health and disease, should know, that it is indispensable, that the study of the organization of the brain should march side by side with that of its functions.
Source: quotemaster.org