Mike Smith is an advocate of the PDJF (Permanently Disabled Jockeys Fund). Here is some information about the PDJF from their website:
The Permanently Disabled Jockeys Fund (PDJF) was incorporated in the spring of 2006. It was a collaborative effort of many leaders in the horse racing industry, including race tracks, jockeys, horsemen, and many others who had a vision of a program that would bring much-needed financial assistance to a group of athletes who have given so much to the sport of horse racing.
The PDJF is governed by an independent board comprised of stakeholders from a broad cross-section of the horse racing industry.
The PDJF is committed to working with both industry and medical research groups to improve the safety of both the human and equine athlete as well as medical research projects dedicated to reducing catastrophic injuries.