Rehabilitation is the process of supporting a person in achieving the best possible level of function, independence, and quality of life. Rehabilitation does not repair or undo the damage caused by sickness or trauma; rather, it aids in the restoration of an individual's health, functioning, and well-being. Because rehabilitation medicine is tailored to each individual's needs, it enables a child, adult, or elderly person to be as self-sufficient as possible in daily activities, allowing them to participate in education, job, recreation, and meaningful life tasks such as caring for family members. An estimated 2.4 billion people worldwide suffer from a health condition that could benefit from rehabilitation. Changes in population health and features are expected to increase the demand for rehabilitation services around the world. People are living longer, for example, but with more chronic disease and disability. Rehabilitation is extremely person-centred, which means that the interventions and approaches chosen for each person are determined by their goals and preferences. Rehabilitation can take place in a variety of venues, including inpatient and outpatient hospitals, private clinics, and community settings such as a person's home.