Your 86 Billion Neurons

Your brain contains roughly 86 billion neurons, each connected to thousands of others through synapses. Total connections exceed 100 trillion — more than the stars in the Milky Way. This network produces every thought, memory, emotion, and movement.

Neurons communicate through electrical impulses and chemical neurotransmitters. Signals race at up to 268 mph, then trigger chemical release across synaptic gaps. The whole network runs on about 20 watts — roughly the power of a dim light bulb.