"When people know they are being watched, they tend to perform. It is an automatic response and often, people don't even realize they are doing it,” explains therapist Amy Sutton from Freedom Counselling. This is known as the Hawthorne Effect. The tendency to change behavior when you know you’re being observed. In the context of AI monitoring your mental health that could mean people masking signs of distress, consciously or not. On the flip side, if these tools are rolled out as part of workplace wellbeing programmes and people don’t know they’re being monitored, that raises serious questions