Facts that Seem Fake, But Are Actually True
Patricia Thompson stashed this in Random Tidbits
5. There are more synapses (nerve connections) in your brain than there are stars in our galaxy. -Submitted by Jim Preston
Astronomers estimate that there are more than 200 billion stars present in the Milky Way Galaxy. That's a lot of stars.
But neuroscientists estimate the number of synaptic connections in the average 3-year-old is close to 1 quadrillion. After that, a refining process occurs, leaving the average adult with about half that many, or roughly 500 trillion synapses.