Disability discrimination is not an area limited to those who would be disabled under the conventional definition of physical disability. Employers with more than 15 employees must provide reasonable accommodations to a wide variety of employees who suffer from diabetes, cancer, HIV, or a variety of other health conditions that can affect their major life activities or major bodily functions.
Mental health conditions such as bipolar disorder, anxiety disorders, and depression can also be covered under the Americans with Disabilities Act.
The ADA also covers perceived disabilities. For example, a person who is not schizophrenic, but is terminated because a manager believes he is schizophrenic would be able to file suit, based on the idea that the employee was perceived to be disabled.