09/04/2026
Your brain is one of the most energy-demanding organs in your body.
Even though it makes up only a small percentage of your body weight, your brain uses an enormous amount of your body's energy every day.
That energy powers everything from memory and concentration to emotions, decision-making, and mood.
When we talk about "brain energy," we're talking about how brain cells produce and use the energy they need to function.
Researchers are continuing to explore how changes in metabolism may influence this process and what that could mean for mental health.