determine the amount of stress that pregnant women have experienced during their work and effects on the type of delivery, birth weight and apgar score in the selected hospitals of tehran

extractthe fetal as a passenger that her/his trip takes nine months. accidents and incidents may cause this trip will remain incomplete or to create different effects. islamic authors believe these accidents and incidents not only affected fetal but also affected on all of mental and physical aspects of fetal ' s mather, because fetal is such a part of her body. as good nutrition in mother cause to good growth in fetal mother ' s thoughts, ethics, concerns, excitements or even good and bad  her traits have good or bad effects on fetal. myersin 1975 writes that stress a pregnant woman may be effective in the developing embryo.