This in-person workshop delves into the intricacies of extracting valuable insights from healthcare time series data, aiming to deepen our comprehension of human health. The session will concentrate on two important themes within this domain: Behavioral Health and Foundational Models. Throughout the workshop, we will highlight cutting-edge approaches and solutions tailored for analyzing healthcare time series data, positioning attendees at the forefront of advancements in this field. By participating in this workshop, attendees will also become part of a diverse community committed to driving forward the boundaries of knowledge in human health.