Holistic therapy emphasizes on the whole person - physical , mental , emotional and spiritual - as well as personal responsibilty and participation in one 's own health care . Environmental medicine is a therapy based on how factors in our environment - foods , chemicals , water , air quality affect us . Treatment ranges from environmental control to immunotherapy . In recent years , however , the limitations of the mechanistic Western model have been the of many discussions and George Engel , a leading advocate of general systems theory , is one...











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