1OO,OOO,OOO,OOO
Estimated number of brain cells in the average adult brain


10 Billion
Estimated number of brain cells lost by the average adult over a lifetime


200 Million
Estimated number of additional brain cells
lost by an average Alzheimer´s patient


85,OOO
Estimated number of brain cells lost
by the average adult each day


2OO Million
Miles of neurons formed if every
brain cell in the average adult brain
were arranged end to end


5O
Estimated number of brain cells regenerated by the average adult each day


1
Number of stem cells required by scientists at the University of Florida to generate thousands
of perfectly functional brain cells in a dish


And the good news...
1
Number of brain cells needed to spot a familiar face, according to UCLA neuroscientists


Sources: Allen Institute of Brain Science, MIT Picower Center for Learning and Memory, Newcastle University Institute of Neuroscience, UCLA David Geffen School of Medicine, University of Florida McKnight Brain Institute