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At What Age Are Humans Considered to Be Fully Mature?

While the law often designates 18 as the age of legal adulthood, emerging neuroscience suggests that humans do not reach full maturity until at least age 25, and sometimes even into their 30s. This extended timeline for development covers physical, psychological, and emotional milestones, making the question of at what age are humans considered to be fully mature far more complex than a single birthday.