Why Do We Get Brain Zaps?

Imagine your brain is like a busy city full of tiny messengers running around with little letters. These messengers carry messages between buildings called neurons. When you take medicine for sadness or anxiety, it helps these messengers move faster and smoother. But if you stop the medicine too quickly, some messengers get confused and start sprinting wildly.

When they rush through their paths all at once, your brain feels like someone just flicked a light switch really hard. Zap! It is not dangerous, but it feels surprising. It often happens when you close your eyes in bright sunlight or turn your head fast. Think of it like static electricity on a sweater, but inside your skull instead of on your skin.