Complex sentence: The system is derived from osteopathy, neuro-linguistic programming (NLP) and life coaching, and thus it has been described as treating M.E. as a "psychological manifestation" rather than a physical illness.
Split into simpler sentences: The system is derived from osteopathy, neuro-linguistic programming (NLP) and life coaching. Thus it has been described as treating M.E. as a "psychological manifestation" rather than a physical illness.