Designing a product in the healthcare space requires a deep understanding of the industry, its regulations, and the needs of its users. To begin, I would conduct extensive user research to identify pain points and unmet needs. This could involve interviewing patients, doctors, nurses, and other healthcare professionals, as well as observing them in their daily workflows. Once I have a clear understanding of the user needs, I would work with a cross-functional team to ideate and develop potential solutions. This team would likely include designers, engineers, regulatory experts, and other stakeholders. Given Facebook's expertise in AI, I would explore how machine learning and other AI technologies could be leveraged to improve healthcare outcomes. For example, AI could be used to help diagnose diseases, predict patient outcomes, or personalize treatment plans. Throughout the product development process, I would prioritize user feedback and iterate on the product accordingly. I would also ensure that the product complies with all relevant regulations and that user privacy and data security are prioritized. Overall, designing a successful product in the healthcare space requires a user-centric approach, cross-functional collaboration, and a deep understanding of the industry and its regulations.