AI helping with protecting people’s health

AI is a growing topic and the use of data can have an impact on the way we live our lives. If technology could predict when someone is buying enough cigarettes to put them at more risk for cancer, or by purchasing an increasing amount of fast food that could cause health problems in the near future, would this be acceptable? How do you believe the laws regarding AI need to evolve to protect the way we live our lives? What laws would you implement to protect consumer information?