![]() ![]() ![]() There are many, many scientific studies that have compared the brain size (or, more often, the head circumference) of children with autism spectrum disorders (ASD). Some scientists think that overgrown brains are a marker of certain forms of autism. What is the consequence of a brain with too many neurons? There is no clear answer. A brain could end up overgrown with neurons if either too many cells are born, or too few die. ![]() Eventually, these excess neurons die, in a process called apoptosis (definition: programmed cell death). Scientists interested in the process of brain development have known for a while that brains make too many neurons, with too many connections between them, during certain stages of development. ![]() For mammals, this process starts in the womb and extends through adolescence. During development, our brains are built in a complex ballet of neuronal birth, migration, maturation, and even death. To answer this question, let’s think about how our brains grow to the size they normally are. "What would happen if we had too many neurons in our brains? - Teetat ![]()
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