how much electricity does a brain use
The human brain is only 2% of the weight of the body, but it consumes about 20% of the total energy in the body at rest.. 20 W. Hart, Leslie. How the Brain Works.he brain consumes energy at 10 times the rate of the rest of the body per gram of tissue. The average power consumption of a typical adult is 100 Watts and the brain consumes 20% of this making the power of the brain 20 W. Based on a 2400 calorie diet (Adapted from Yang).