Question: how many neurons do we have in our brain?

Giovanna Bermano answered on 19 Nov 2014:

The average human brain has 86 billion cells…..few billion less of what was originally thought….a group in Brazil took the brain of 4 people donated to research after their death, and created a soup of brain cells by destroying the cell membrane….they then counted the number of nuclei in a sample and extrapolated the total number….a weird experiment…..