
Synthetic neurons to replace lost or damaged ones
The human brain makes millions of neurons before birth and throughout infancy and childhood, peaking during adolescence. After that point, the brain does not produce any more neurons. So, when neurodegenerative diseases like Parkinson’s disease and Alzheimer’s disease kill neurons, it’s impossible for the brain to just grow them back. Synthetic neurons â tiny silicon chips that behave like real nerve cellsâ could change that. The ability to replace brain cells that have died or been damaged beyond repair could potentially slow or reverse the effects of neurodegenerative diseases.