Abstract Background Twitter (recently renamed to X) is a popular social media that can be used for health communication. There are few studies analyzing the profile of Brazilian cardiologists active on the platform. Objectives To identify the profile of Brazilian cardiologists on Twitter (X), their online influence and reach, as well as their bios’ description. Methods A total of 1,083 accounts of Brazilian cardiologists were created between 2006 and 2021. Data were collected using the FollowerWonk tool and analyzed using […]