The chief executive of Microsoft AI says people are turning to its Copilot model for health-related queries, especially at night.
In a new post on X, Mustafa Suleyman says health is the number one topic for Copilot mobile users in 2025.
According to the CEO, the company studied more than 500,000 health-related conversations on Copilot to understand how people use the chatbot for help.
The study found five emerging trends.
According to Microsoft AI’s research, about 20% of conversations are about assessing a user’s symptoms or personal conditions.
“First, nearly one in five conversations involve personal symptom assessment or condition discussion, and even the dominant general information category (40%) is concentrated on specific treatments and conditions, suggesting that this is a lower bound on personal health intent.”
Users are also asking about the symptoms or conditions of someone they know.
“Second, one in seven of these personal health queries concern someone other than the user, such as a child, a parent, a partner, suggesting that conversational AI can be a caregiving tool, not just a personal one.”
The data also shows that health-related queries surge at night.
“Third, personal queries about symptoms and emotional health queries increase markedly in the evening and nighttime hours, when traditional healthcare is most limited.”
Fourth, Microsoft AI says mobile users tend to focus more on personal health concerns, while those who use desktops focus on professional and academic work. Lastly, the study finds that people are using Copilot to address a pain point in the country’s healthcare system.
“Fifth, a substantial share of queries focuses on navigating healthcare systems such as finding providers and understanding insurance, highlighting friction in the delivery of existing healthcare.”
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