Jackson concluded from his studies based on the behavior of wild horses, that domesticated horses appear thrive physically, mentally and emotionally if kept in an environment that takes into consideration the most basic elements of their natural world by situating and propelling them into forward movement. According to Jackson, who founded the American Association of Natural Hoof Care Practitioners (AANHCP) in 2002, the hoof is adaptively cross-linked to the nexus of natural behavior and movement and can be restored to its native integrity and soundness by putting horses in such a simulated natural environment.