I almost needed to go on disability reading this piece from NPR:

In the past three decades, the number of Americans who are on disability has skyrocketed. The rise has come even as medical advances have allowed many more people to remain on the job, and new laws have banned workplace discrimination against the disabled. Every month, 14 million people now get a disability check from the government.

It is called Unfit or Work: The startling rise of disability in America and it is put together real well.  You need to read this.