Generative AI tools have transformed how people write, study, code and solve everyday problems. However, researchers say excessive reliance on the technology could weaken critical thinking, memory and decision-making over time.
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Services such as ChatGPT and Claude can draft emails, write computer code, translate languages and plan trips within seconds. As a result, many schools, workplaces and individuals now use AI for a wide range of tasks.
Recent studies suggest that frequent AI use may carry cognitive risks. Researchers identified memory, decision-making and critical thinking as areas that could suffer if people rely too heavily on AI.
One American-British study involving 1,222 participants found that AI tools improved performance in arithmetic and reading exercises. However, participants performed worse over time when they completed similar tasks without AI assistance.
The researchers also found that participants became less willing to continue solving problems once the AI tools were unavailable. They said persistence plays a key role in long-term learning and skill development.
Grace Liu, a doctoral student at Carnegie Mellon University and the study’s lead author, said AI can remove valuable learning opportunities. She added that the technology differs from earlier digital tools because it supports almost every type of intellectual task.
Unlike electronic calculators, generative AI often produces complete answers instead of helping users work through the reasoning process. Consequently, users may spend less time developing analytical skills.
Meanwhile, a 2025 study by the Massachusetts Institute of Technology (MIT) found that students who used generative AI to write essays showed lower levels of critical thinking. Other researchers have linked this trend to “cognitive offloading,” where people shift mental tasks to technology.
According to French researcher Johann Chevalere, people naturally try to conserve mental effort. He warned that regular dependence on AI could strengthen that tendency because the brain gradually weakens connections it no longer uses.
In response, several AI companies have introduced features that encourage users to think independently. OpenAI added a Study Mode to ChatGPT, while Google introduced Guided Learning in Gemini. These tools provide hints and questions instead of direct answers.
Microsoft also said it has built reminders into Copilot to encourage users to verify AI-generated information. The company believes responsible AI use requires active user engagement rather than blind acceptance.
Nevertheless, researchers say long-term evidence remains limited. They agree that larger studies are still needed to understand how generative AI affects the human brain over time.
For now, experts recommend using AI as a support tool rather than a replacement for independent thinking. They argue that balanced use can help people benefit from the technology while preserving essential cognitive skills.
