AdvertisementThe average acceleration for teen girls was 4.2 years, compared to 1.4 for boys. It comes at a time when teen girls have seen a sharp rise in sadness and hopelessness, often attributed to social media use. The team measured cortical thinning, a natural process that usually begins in late childhood and is believed to improve cognitive performance. Cortical thinning isn't always negativeCorrigan said there's a lot we still don't know about cortical thinning, such as whether it's reversible. It's believed that the cortex thins to reduce the effect the environment has on brain development, Corrigan said.

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Persons: —, COVID lockdowns, Dr, Neva Corrigan, Corrigan, It's, Bradley, Peterson Organizations: Service, University of Washington, Business, Children's Hospital Los, New York Times Locations: Children's Hospital Los Angeles