Facts About the Brain

What do you know about physiology and the brain? Here are a few facts:

•  Messages to and from one side of the body are usually handled by the opposite side of the brain.

•  The folded, crumpled structure of the cerebrum contains an enormous amount of small and large grooves and bulges, which greatly increases its overall surface area.  Because of its design, the surface area of the cerebral cortex is tripled and if laid flat, would cover an area of about three square feet. 

•  About 75 percent of the brain is made of water.

•  There are no pain receptors in the brain, so it can feel no pain.

•  There are 100,000 miles of blood vessels in the brain.

•  The human brain is the fattest organ in the body, consisting of at least 60% fat.

•  While awake, your brain generates between 10 and 23 watts of power–or enough energy to power a light bulb.

•  Humans experience about 70,000 thoughts each day.

•  Children who learn two languages before the age of five alter their brain structure to have much denser gray matter as adults.

•  As we age, our brains lose mass.