32 of the divine plan for spouses also reminds that it is God who opens and closes the womb , 127 a truth with deep meaning at a physical as well as at a supernatural level . As St . John Paul II teaches , procreation is always “ with the help of the Lord ,” a realization that is most significant primarily for the woman . 128 For her , participation with God in human procreation involves an ongoing invitation as she observes the visible signs of fertility in the language of her body .
Scientists have long theorized that the human female has evolved to the point where “ concealment of ovulation ” is a modern sociobiological reality . 129 However , current trends in the study of human sexology indicate strong interest in the effects of ovulation on both male and female sexual responses . Despite contradictory findings and conclusions , this research body gives evidence of a subtle yet profound sexual dialogue between man and woman , primarily around the time of ovulation . For example , a woman ’ s peak fertility corresponds with changes in olfactory sensitivity to male sex hormones , 130 vocal variations and linguistic fluctuations . 131 Men find ovulating women more attractive , responding positively to facial and vocal cues , 132 as well as to body odors . 133 Ovulation also prompts changes in male linguistic patterns 134 and proprietary
127 Cf . Gen . 20:18 ; Exod . 23:26 ; Isa . 66:9 . 128 John Paul II , “ The Mystery of Woman ,” para . 10 ; Cf . Gen . 4:1 . 129 J . P . Gray and L . D . Wolfe , “ Human Female Sexual Cycles and the Concealment of Ovulation
Problem ,” abstract , Journal of Social and Biological Structures 6 , no . 4 ( 1983 ): 345-352 , accessed May 27 , 2018 , http :// dx . doi . org / 10.1016 / S0140-1750 ( 83 ) 90134-3 . 130 Lenka Martinec Nováková , Jan Havlíćek , and S . Craig Roberts , “ Olfactory Processing and Odor
Specificity : A Meta-Analysis of Menstrual Cycle Variation in Olfactory Sensitivity ,” Anthropological Review 77 , no . 3 ( 2014 ): 331-345 , accessed May 27 , 2018 , http :// dx . doi . org / 10.2478 / anre-2014-0024 . 131 Julia Fischer et al ., “ Do Women ’ s Voices Provide Cues of the Likelihood of Ovulation ? The Importance
of Sampling Regime ,” PLoS ONE 6 , no . 9 ( 2011 ): e24490 , accessed May 27 , 2018 , http :// dx . doi . org // 10.1371 / journal . pone . 0024490 . 132 David A . Puts et al ., “ Women ’ s Attractiveness Changes with Estradiol and Progesterone across the
Ovulatory Cycle ,” abstract , Hormones and Behavior 63 ( 2013 ): 13-19 , accessed May 27 , 2018 , http :// dx . doi . org / 10.1016 / j . yhbeh . 2012.11.007 . 133 Devendra Singh and P . Matthew Bronstad , “ Female Body Odour is a Potential Cue to Ovulation ,”
Proceedings of the Royal Society B : Biological Sciences 268 , no . 1469 ( April 22 , 2001 ): 797-801 , accessed May 27 , 2018 , http :// dx . doi . org / 10.1098 / rspb . 2001.1589 . 134 Jacqueline M . Coyle and Michael P . Kaschak , “ Female Fertility Affects Men ’ s Linguistic Choices ,”
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