How is AI affecting our cognitive abilities according to recent research?

According to research from Microsoft and Carnegie Mellon University, increased reliance on AI is potentially eroding our cognitive abilities, causing what's been termed 'brain rot.' The study of 319 knowledge workers revealed that as people depend more on AI, they engage in less critical thinking, becoming mere overseers who check AI's work rather than actively solving problems themselves. This shift from task execution to task stewardship leaves workers feeling mentally sluggish and less capable. Notably, those relying on AI for complex reasoning produced a narrower range of solutions compared to independent thinkers. By automating routine tasks, users miss opportunities to practice judgment and sharpen cognitive skills, ultimately making them less prepared for real-world challenges.