20%
Glucose is the only energy source that the brain can use.
The brain controls all activity in the body and uses about 20 of the body's energy.
About 10% of your brain ---------------------------------- Actually you use just about all of your brain
You use your brain for 100% of your life. When your brain stops functioning, so do you.
its your bodys fuel
The brain, of course.
Isaac Newton use his brain to its maximum level he use his brain to 110 %
The answer is brain. Your brain is almost exclusively depends on the glucose as energy source. You lose the consciousness very rapidly, if blood supply to the brain is hampered by any reason.
You use 7,000,000 brain cells.
fat is used for keeping the body warm and to protect your internal organs it is also used as a store of energy which you can use when you run out of carbohydrates
The body's preferred energy source is carbohydrates, which are broken down into glucose to provide quick energy for cells. When carbohydrates are not available, the body can also use fats and protein for energy through processes like gluconeogenesis and ketogenesis.
The preferred energy fuel for the brain is glucose. While the brain can also use ketones produced from fat during periods of low glucose availability, glucose is the most efficient and preferred source of energy for normal brain function.