Millions of Americans turn to the Internet for medical information, according to a new study by the Pew Research Center’s Internet and American Life Project. The survey also finds that although people heavily use information found online, doctors, nurses, and other health professionals are the first choice for advice about health concerns. The survey, based on telephone interviews with 3,001 adults in the U.S., finds that of the 74% of Americans who use the Internet, 80% have looked online for information about any of 15 health topics, such as a specific disease or treatment. Pew says this translates to 59% of all adults. Pew researchers say that as broadband and mobile access spreads, more people are sharing what they are doing or thinking. This includes tracking workout routines, posting reviews of their medical treatments, and raising awareness about certain health conditions.