Oct 1, 2006
QUESTION: How many neurons does your brain have, and how many connections can each neuron have? Then, how many total brain connections are there in your brain…and how many leaves in the whole Amazon?
ANSWER: Your brain is made up of around 100 billion neurons – about the same as the number of trees in the Amazon rainforest. And each neuron is connected to around 10,000 others. So the total number of connections in your brain is about the same as the number of leaves in the rainforest – about 1,000 trillion. Yes, a quadrillion, to make some sharp commenters below happy 🙂
Next brain teaser in SharpBrains’ top 25 series: