The ADA defines a disability as a physical or mental impairment that substantially interferes with one or more major life functions. Under the ADA, examples of major life activities include caring for oneself, performing manual tasks, seeing, hearing, eating, sleeping, walking, standing, lifting, bending, speaking, breathing, learning, reading, concentrating, thinking, communicating, and working, as well as the operation of a major bodily function. Persons who are perceived as having such impairment or have a record of such impairment are also protected by the ADA.