96651
For women , almost any physiological change that affects the reproductive system - premenstrual syndrome , pregnancy and the postpartum period , menopause - can have an adverse effect on libido .
 premenstrual syndrome
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 premenstrual syndrome