Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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HEALTH

The Claim

Using ChatGPT causes a person's brain to deteriorate.

Verified by Lenz ·

The Short Version

The evidence does not show that ChatGPT use causes brain deterioration. Existing studies mainly examine short-term cognitive offloading or reduced engagement during specific tasks, not lasting damage or clinical decline. Some reports also rely on media amplification of preliminary findings, while peer-reviewed evidence does not establish a general causal harm to the brain.

Caveats

  • Short-term reductions in effort or EEG connectivity during AI-assisted tasks are not proof of brain deterioration.
  • Several widely shared claims appear to rely on secondary media coverage or preliminary research rather than strong longitudinal evidence.
  • Findings from narrow writing or lab tasks should not be generalized to all ChatGPT use or to permanent brain harm.

The Receipts

  1. Redefining Cognitive Domains in the Era of ChatGPT - PMC - NIH

    PMC - NIH

  2. Human-AI collaboration in large language model-assisted brain MRI differential diagnosis: a usability study

    PubMed

  3. ChatGPT-estimated occupational complexity predicts cognitive ...

    PubMed Central

  4. ChatGPT produces more “lazy” thinkers: Evidence of cognitive ...

    Stanford University SCALE AI

  5. Generative AI: the risk of cognitive atrophy - Polytechnique Insights

    Polytechnique Insights

  6. Your Brain on ChatGPT: Accumulation of Cognitive Debt ...

    arXiv

  7. AI Reveals How Brain Activity Unfolds Over Time

    Stanford HAI

  8. ChatGPT Use Linked to Cognitive Decline: MIT Research - NPHIC

    NPHIC

  9. MIT study finds ChatGPT use may impair brain function

    Fox News

  10. A New Study Shows ChatGPT is Dramatically Weakening Our Brains

    Brad Stulberg Substack

+ 2 more sources — see the full list on Lenz

Filed Under

ChatGPT

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