Did You Know!
Nerve Signals Are Part Electrical — Part Chemical
Many people think nerves work like simple electrical wires. But they’re far more sophisticated.
Inside a neuron, signals travel electrically.
Between neurons, signals jump across tiny gaps called synapses using chemicals called neurotransmitters.
One of the fastest nerve fibers in your body can transmit signals at around 250 miles per hour — thanks to a fatty insulation called myelin.
That means when you touch something hot, your body reacts before you consciously think about it.
