AI and the Rise of Cognitive Overload

"A recent study published in Harvard Business Review by Julie Bedard and colleagues at Boston Consulting Group (BCG) describes something workers themselves have begun calling "AI brain fry." The researchers surveyed nearly 1,500 full-time employees across industries in the United States and found that a meaningful share reported symptoms of acute cognitive fatigue linked to heavy AI use, particularly when managing multiple AI systems simultaneously."

"Workers described mental fog, headaches, slower decision-making, and the strange sense that their thinking had become crowded. They define it as mental fatigue that occurs when interacting with AI exceeds cognitive capacity. What stands out is not just the symptoms, but the context in which they appear."

"Workers reported that AI did not simply reduce workloads. In many cases it expanded what the researchers called the sphere of accountability, meaning that employees suddenly felt responsible for producing more work, monitoring more output."

A study by Julie Bedard and colleagues at Boston Consulting Group surveyed nearly 1,500 U.S. employees and identified "AI brain fry"—acute cognitive fatigue linked to heavy AI use. Workers reported mental fog, headaches, slower decision-making, and crowded thinking. The phenomenon reflects multiple converging forces rather than a single cause. AI has entered a highly competitive, productivity-focused culture where efficiency is central to personal worth. Rather than reducing workloads, AI expanded workers' accountability sphere, increasing expectations for output and monitoring responsibilities. This acceleration of productivity demands, combined with managing multiple AI systems simultaneously, exceeds cognitive capacity and generates the observed fatigue symptoms.

Read at Psychology Today