Objective:To stimulate shenshu and sanyinjiao points of perimenopausal syndrome rats by electroacupuncture(EA) in different periods,to analyse the effect and its relationship with the period,to explore the best chance for the prevention and cure of perimenopausal syndrome(PMS) by EA.Methods:Perimenopause rats model was made by removing ovaria.All rats were divided into five different periods.Quantities of heat-resistant,stamina,activity and sleep function were examined after EA for treatment of perimenopaus...