While contemporary biomedicine has distanced itself from its ancient roots in religion and magic, many forms of traditional medicine[28] and alternative medicine continue to espouse vitalism in various guises: "As long as life had its own secret properties, it was possible to have sciences and medicines based on those properties".[29] The US National Center for Complementary and Alternative Medicine (NCCAM) classifies complementary and alternative medicine therapies into five categories or domains, including:[30] alternative medical systems, or complete systems of therapy and practice; mind-body interventions, or techniques designed to facilitate the mind's effect on bodily functions and symptoms; biologically based systems including herbalism; and manipulative and body-based methods such as chiropractic and massage therapy.