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New research is challenging tech’s promises about AI learning. In a Wharton experiment, people using Google’s AI summaries produced generic health advice, while traditional search yielded more nuanced guidance. An MIT study of 54 students found ChatGPT users showed the lowest brain activity and 83 percent could not recall a sentence from their essays a minute later. Separately, a UCSF led JAMA study tied one to three or more hours of social media to lower reading, memory and vocabulary scores in children. Experts urge screen free zones at home as schools restrict phones and worries about brain rot grow.

Prepared by Jonathan Pierce and reviewed by editorial team.