This document summarizes data from Pew Research Center surveys about health information seeking and social media usage in the United States and around the world. Some key findings include: - 35% of U.S. adults have gone online to try to figure out a medical condition. Search engines are the most common starting point. - Half of health searches are conducted for someone else. - Social media is commonly used to learn about and share views on music/movies, community issues, and politics. Sharing views on religion is less common. - Younger people are much more likely to use smartphones and social media.