The key for a successful manager, able to include all workers so as to improve the work ability in a company is the ability to do reasonable accommodations, not for just those who have special needs or suffer from one or more chronic conditions. But as a general rule to increase inclusiveness of all. The concept of reasonable accommodation stems from US law but it has also been taken over by the UN Convention on the Rights of Persons with Disabilities of 2006 to indicate all necessary and appropriate modifications and adaptations to guarantee the fruition and exercise of human rights to people with disabilities. Within the work environment, reasonable accommodations can be described as any change or adjustment to the job, the work environment or the way work is customarily done which enables an employee with a chronic disease to perform the essential functions of a job.