This document discusses the term "P" in healthcare, which can stand for population, patient, or problem. P often refers to a population of patients that share a problem or condition. Examples provided of populations include residents of California and African American women. Examples of patients include infants, adolescent boys, and a 60-year old male with loss of consciousness. Examples of problems include type 1 diabetes, rheumatoid arthritis, cancer, COPD, and obesity. The document emphasizes that P encompasses a population of patients experiencing a problem or condition.