According to the World Health Organization’s World Report on Disability, 15 percent of the world’s population, or more than 1 billion people, are living with a disability. Of the over 1 billion, it’s estimated 450 million people are living with a mental or neurological condition— and two-thirds of these people will not seek professional medical help, largely due to stigma, discrimination, and neglect. International Day of Persons with Disabilities promotes the rights and well-being of persons with disabilities in all spheres of society and development. It also focuses on spreading awareness and understanding of disabilities that are not immediately apparent, such as mental illness, chronic pain or fatigue, sight or hearing impairments, diabetes, brain injuries, neurological disorders, learning differences, and cognitive dysfunctions, among others.