With hundreds of millions of people turning to chatbots for advice, it was only a matter of time before tech companies began offering programs specifically designed to answer health questions.In January, OpenAI introduced ChatGPT Health, a new version of its chatbot that the company says can analyse users’ medical records, wellness apps and wearable device data to answer health and medical questions.Currently, there is a waiting list for the program. Anthropic, a rival AI company, offers...