Function Health is a health technology company that provides a health empowerment platform offering individuals access to comprehensive lab testing and personalized insights from top doctors. Founded in 2022 by Jonathan Swerdlin, Mark Hyman, Daniel Swerdlin, Mike Nemke, Pranitha Patil, and Seth Weisfeld, the company is headquartered in Austin, Texas. Function Health aims to empower people to live 100 healthy years by combining routine whole-body lab testing with expert medical guidance. Function Health has a $2.5 billion valuation.
Function Health's leadership team includes CEO Jonathan Swerdlin and Chief Medical Officer Mark Hyman. The company's platform offers members access to over 160 lab tests annually, providing detailed and actionable health insights. In November 2025, Function Health launched its Medical Intelligence Lab (MI Lab), focused on leveraging AI to provide personalized insights using health data. Function Health also launched a new app within ChatGPT, allowing members to ask questions and receive responses informed by their health data. In late 2025, the annual membership fee was lowered to $365.