Human BodyBrain
Your brain runs on less power than a fridge bulb.
Your brain runs on roughly 20 watts — about the draw of a dim light bulb — while operating some 86 billion neurons. Supercomputer simulations of even modest slices of brain tissue have needed megawatts to keep up.
Step by step
- All your thought, memory and motion runs on roughly 20 watts.
- That covers about 86 billion neurons, firing as you read this sentence.
- Supercomputer brain simulations have burned megawatts to model just fractions of one.
Source
This fact is written from the English Wikipedia article it links to, so you can check every word in one tap. Fact Drop rates that source 4 out of 5 for credibility, and the rating travels with the fact on the back of its card in the app.
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It got that efficient the strange way: by deleting itself…
This fact is a step in the rabbit hole The self-eating brain. Follow the rabbit hole
More human body facts
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- Damage to one side of the brain can erase the concept of the opposite side of space.
- Immune cells prune your brain. They eat synapses whole.
- Your brain burns about a fifth of your energy, and concentrating hard barely moves the number.
- You became you by deletion. Billions of connections cut.
- Your brain cannot feel pain.
- You forget almost every dream within minutes.