Your brain uses 20% of your body's energy
Your brain, though small, demands 20% of your body's energy daily, explaining why intense thinking can make you hungry and why children's brains require even more fuel.
Despite making up just 2% of your body weight, your brain consumes a remarkable 20% of your total energy, about 320 calories daily. This high demand explains why thinking hard can genuinely make you feel hungry! The brain primarily uses this energy to power electrical signals between neurons, with glucose as its preferred fuel.
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