Occupational rehabilitation is the science and practices of returning injured workers to a level of daily work activities that is appropriate to their functional and cognitive capacity related to their position of which may be influenced by the severity of a worker's injuries.
See also: Psychiatric rehabilitation
Many workers have an increased risk of developing common mental disorders (CMDs) in the workplace due to job stressors such as job insecurity, bullying or psychological harassment, low social support at work, employee perceptions of fairness in the workplace, and an imbalance between job demands and rewards. These CMDs may include anxiety disorders, alcohol dependence, addiction-related disorders, suicidal ideation, and depression 
A symptom of CMDs is having disorganized and deteriorated habits. Therefore, during work rehabilitation, occupational therapists and/or other rehabilitation professionals often use a graded environment, intentionally eliminating barriers to increase individuals’ performance and self-esteem. An integrative approach, based on the three key disciplines of medicine, public health, and psychology, is being utilized by occupational therapists to reduce job stressors and improve the psychological well-being of employees with CMDs. The purpose of an integrative approach is to prevent further harm to the employee and to learn how to manage the illness through health promotion, occupational psychology, positive psychology management, psychiatry, and occupational medicine.
Cognitive work hardening programs administered by occupational therapists using the Canadian Model of Client-Centered Enablement (CMCE) improve return to work outcomes of employees suffering from depression. Cognitive work hardening incorporates meaningful occupations or work tasks that are graded to fit individual needs within an environment that is supportive in order to improve self-worth. Cognitive work hardening programs are individualized to promote interpersonal communication and coping skills within a real-life work setting.
The Stimulating Healthy Participation and Relapse Prevention (SHARP) approach is used for individuals with CMDs who experience many sick absences from work. The SHARP approach encompasses five steps including: listing positive and negative situations encountered in the workplace; solutions to negative situations or problems; support need for solutions; planning how to implement solutions; and evaluation of implementation