How do we know that there are 100 billion neurons in the brain?
Where did this estimate come from? Neuroscientists Bradley Voytek of UCSF and Paul King of the Redwood Center for Theoretical Neuroscience at UC Berkeley weigh in on Quora. How do we know that there are 100 billion neurons in the human brain? Brad Voytek, Ph.D. in neuroscience from the University of …