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Heavy Screen Time Rewires Young Brains, For Better And Worse

There's new evidence that excessive screen time early in life can change the circuits in a growing brain.

Scientists disagree, though, about whether those changes are helpful, or just cause problems. Both views emerged during the Society for Neuroscience meeting in San Diego this week.

The debate centered on a study of young mice exposed to six hours daily of a sound and light show reminiscent of a video game. The mice showed "dramatic changes everywhere in the brain," said Jan-Marino Ramirez, director of the Center for Integrative Brain Research at Seattle Children's Hospital.


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