Despite the passage of laws aimed at increasing access and equitable opportunities for students with disabilities in postsecondary education, issues related to disability continue to be rarely discussed in topics related to diversity, inclusion, and educational reform. Disability represents not only an immensely diverse section of the general population, it is a term that is problematic to define, and a term embroiled in controversy, both historically and from a current day perspective. This short piece invites readers to consider the history of how disability has been defined, explores specific issues faced by those living with 'invisible disabilities', such as learning disabilities and attention deficit hyperactivity disorder (ADHD), increases awareness of how these issues may affect educational outcomes, and encourages educators to seek best teaching practices that can address the specific needs of particular students in their classes.