When you have a “light bulb moment”

01. Sep. 2015 • Biologické vedy

When you have a “light bulb moment”

Did you know the brain is able to produce energy needed to light up a single bulb? (Maybe that’s why we experience “light bulb moments”)

Your brain contains about 100 billion tiny cells called neurons. There are so many that counting all of them would take you 3000 years. When we dream, we laugh, think, see and move, all thanks to the tiny chemical and electrical signals sent from one neuron to another along milliards of small “highways” in our brains. Believe it or not, brain activity never stops. Every second, the brain sends out a countless number of messages. If you puncture your finger with a pin, the sensory neurons in your finger will send information to your brain at the speed of more than 240 kilometers per hour. The brain will then process this information and send signals to the muscles of your hand to draw your finger away from the pin. Your neurons create and send more messages than all the phones in the entire world. And if one neuron creates only a small amount of electrical energy, all the neurons together can form a sufficient amount of electrical energy to power a low voltage light bulb.

This issue may be studied in the field of:

  • Medicine
  • Biology


Author: Zuzana Bogárová, FMFI UK, P-mat n.o.

Photo: https://pixabay.com/

Published by: ZČ

Translation: Dorota Jagnešáková

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