Why Has My Teenager Turned into an Alien?

Your child may have suddenly become a moody mutant, but science lifts the lid on the dramatic brain transformations during this most misunderstood part of our lives.

Many parent-child misunderstandings arise because a teen’s body and brain don’t grow in harmony. Adolescence—the total period of mental transition from childhood to adulthood—takes longer than puberty, its physical equivalent. In fact, the brain is in adolescence from the age of 9 to the mid-20s. The law may say that they’re adults at 18, but their heads are only half-cooked! The adolescent brain is a work in progress. It’s not an overgrown child brain, nor is it an underdeveloped adult brain—MRI scans have revealed ...

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