This document discusses how Twitter can be used by surgeons to communicate medical evidence and influence public opinion. It provides examples of how Neil Floch, a bariatric surgeon, grew his Twitter following from 3,500 to 12,300 by tweeting studies, engaging with other users, and creating visual summaries of articles. The document outlines best practices for crafting effective tweets, such as including pictures, tagging other users, and using hashtags. It also shows how Twitter can measure the impact of tweets by tracking retweets, likes, and the results of polls. The overall message is that Twitter is a powerful tool for surgeons to educate the public and advocate for issues like obesity treatment.