Sentence:  The growing emphasis on the emotional aspects of the physical bearing of children has greatly changed the practice of obstetrics across the world — from <WSD>psychoprophylaxis</WSD> in Russia to natural childbirth in America. 
Meaning of the word marked with <WSD> tags:  A method of preparing women for natural (childbirth) by means of special breathing, relaxation techniques and psychological conditioning, practiced without anaesthetics.