We all know a lack of exercise is bad for our bodies. So what is relying on AI doing to our brains? | Devi Sridhar

I suspect nearly all of my students use AI, and I worry about its corrosive effects. We must not entrust tech companies with our long-term health

• Prof Devi Sridhar is chair of global public health at the University of Edinburgh

When I was a postgraduate student at the University of Oxford in the early 2000s, I interviewed for a major consulting firm. All my friends were being recruited, and I thought why not give it a shot? Aside from the usual maths-proficiency test (how quickly can you crunch numbers in front of a client and look smart), I was asked about what the future of streaming could look like. I gave a long-winded answer about the unintended consequences of changing how humans interact with each other when a new technology is introduced, and why this may not be in the best interests of health and society.

I even remember saying something like: “Can you imagine just being stuck at home, alone, watching show after show and never having to move or see any other people? Why would anyone choose that over going out to rent a DVD at a local shop, or to a movie theatre?” You won’t be surprised to learn that I wasn’t invited for a follow-up interview.

Prof Devi Sridhar is chair of global public health at the University of Edinburgh