How old are you when your brain is fully grown? The Surprising Timeline of Brain Development
While a child's brain reaches about 90% of its adult size by age five, the process of maturation is far from over. Many are curious to know exactly how old are you when your brain is fully grown, but the answer is more complex than a simple age. Recent research shows this vital process extends well into young adulthood, driven by ongoing neural changes long after physical growth has peaked.