Your neurons communicate using tiny electrical impulses. This electrical activity is what allows your brain to process thoughts, senses, memory, and movement.
Brain activity is electrical — measurable using an EEG (electroencephalogram).
Your thoughts and memories aren’t “magic” — they’re patterns of signals and connections.
The “power a light bulb” idea is often used as a comparison to show the brain is electrically active. The real value is understanding that the brain runs on electrical signals + chemistry.
• EEG basics (medical/neurology references)
• General neuroscience education sources