Professor I.Q. Explores the Brain

Professor I.Q. Explores the Brain — page 3
An adult brain weighs about 3 pounds and uses only 10 or 12 watts of electricity Yet that small organ in your head can do many more jobs than the biggest and fastest computer ever made Your brain directs and controls all the muscles and organs in your body It receives messages from your eyes ears nose tongue and skin and makes sense of the world around you It stores information in your memory It is involved in everything you do from eating and growing to running and sleeping to breathing and thinking Although your brain makes up only 2 percent of your body’s weight it needs 20 percent of your body’s oxygen It needs oxygen day and night because even when you sleep your brain is busy at work sometimes dreaming but always keeping your heart beating your lungs breathing your muscles moving If the supply of oxygen to your brain stops for just 10 seconds you will lose consciousness IT LOOKS LIKE A PINKISH-GRAY CAULIFLOWER