ABC News Chief Health and Medical Editor, Dr. Richard Besser, moderated a Twitter chat on arthritis on May 17, 2016. The chat covered many topics, including the different types of arthritis, causes, treatments, complementary and alternative therapeutic approaches, and arthritis in children. The 492 contributors to the chat posted over 1,500 tweets, reaching an audience of over 1 million. NIAMS tweets made 75,800 impressions. Tweets from the chat can be viewed by searching on Twitter for #abcDrBChat and scrolling down to the tweets for May 17, 2016.