Puerto Rico has lost thousands of its doctors in the past decade, many having fled to the U.S. mainland for better pay. The island's health care system is grappling with severe understaffing and power outages, and the flight of workers seeking better wages is expected to worsen. That's why one doctor, Pedro Juan Vázquez, who is better known by his stage name PJ Sin Suela, is trying to fill the gaps. He has been treating patients during the day and performing his rap sets at night, singing about the many challenges Puerto Ricans on the island face.