Tag: Brain calories

Despite comprising only about 2% of the body's weight, the human brain demands a staggering 20-25% of the body's total resting energy. This article explores exactly how many calories does it take to use your brain and where all that energy goes.

Despite making up only about 2% of a person's total body weight, the brain can account for as much as 20% of the body's total energy expenditure. This startling metabolic rate raises a question often debated in health circles: **Does the brain need 500 calories a day?**