AI Tools Force Employees to Work Faster and Longer Hours, Study Finds

Feb 11, 2026
Harvard Business Review
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Summary

New research at a tech company reveals AI tools are backfiring, forcing employees to work faster and longer hours while taking on expanded responsibilities, creating cognitive overload and blurred work-life boundaries that companies must address with structured breaks and intentional practices to prevent widespread burnout.

Key Points

  • Research at a 200-employee tech company reveals AI tools intensify work rather than reduce it, causing employees to work faster, take on broader tasks, and extend work into more hours without being asked
  • Workers experience task expansion by stepping into others' responsibilities, blurred work-life boundaries through constant AI prompting during breaks, and increased multitasking that creates cognitive overload
  • Companies need to develop intentional 'AI practices' including structured pauses, work sequencing, and human connection time to prevent burnout and maintain sustainable productivity as voluntary workload expansion masks growing strain

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