What is Electroencephalography (EEG)?

Electroencephalography, or EEG, is like a special kind of listening device that helps doctors hear what’s going on inside your head.

Imagine your brain is a busy city full of people talking at the same time. Sometimes they all talk loudly, sometimes softly, and sometimes in patterns. With EEG, doctors put little stickers called electrodes on your head, just like putting stickers on your forehead when you're playing a game. These stickers can hear the talks happening inside your brain and show them as wiggly lines on a screen.

EEG works by catching tiny electrical signals from your brain. These signals come from brain cells working together, like how your muscles work when you run or laugh.

Doctors use EEG to check if something is wrong with the brain, like during a sleep study, or when someone has seizures. It's like giving the brain a voice so doctors can understand what it’s saying.