The brain doesn't have around 100 billion neurons, as Alex the neurosurgeon stated.<br>The more accurate, more contemporary estimate is around 80 billion. And this difference is huge.,(reply>), Yes previous estimates were 80 billion. More recent research suggests far more.,(reply>)," Citation? You might enjoy this paper: <a href=""https://www.frontiersin.org/articles/10.3389/neuro.09.031.2009/full"">https://www.frontiersin.org/articles/10.3389/neuro.09.031.2009/full</a>"