Problem: Sarah, a 35-year-old woman, presents to the clinic complaining of persistent headaches, fatigue, and difficulty breathing. She lives in an urban area known for its high levels of air pollution due to nearby factories and heavy traffic. Sarah works as a delivery driver, spending long hours on the road in her vehicle. She mentions that her symptoms seem to worsen during days with poor air quality. Course Learning Outcome (CO1): Discuss environmental exposure and implications to health.