AP PSYCHOLOGY

Detailed explanation-1: -While the brain represents just 2% of a person’s total body weight, it accounts for 20% of the body’s energy use, Raichle’s research has found. That means during a typical day, a person uses about 320 calories just to think. Different mental states and tasks can subtly affect the way the brain consumes energy.

Detailed explanation-2: -Studies show that it is about 20 percent of the resting metabolic rate, which is about 1, 300 calories a day, not of the total metabolic rate, which is about 2, 200 calories a day, so the brain uses roughly 300 calories.

Detailed explanation-3: -In the average adult human, the brain represents about 2% of the body weight. Remarkably, despite its relatively small size, the brain accounts for about 20% of the oxygen and, hence, calories consumed by the body (1).

Detailed explanation-4: -Your brain burns calories to perform basic functions. It burns a bit more if you think really hard, but it’s not enough to make you lose weight. That doesn’t mean exercising your brain has no benefits. Activities like listening to music, doing puzzles, and learning new hobbies can all boost your cognitive function.