[polonbike]

In many countries, health is not a business, but a research topic. As a result, databases, cohorts, studies and other data collections can exist without being monetised, or being monetised within some contractual bounds stricter than what happened with LLM training data. So, to get a head start, you would connections in the medical world, and cardiologists, to get access to this data (that already exists). And you would need those professionals for analysis and feedback of your product too