emily chhen: the pill and the rules of sexual attraction
DESCRIPTION
Emily Chhen discusses how the birth control pill might be changing women's tastes in men through hormonal effects. Will this have a long-term impact on the evolution of human beings?TRANSCRIPT
![Page 1: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/1.jpg)
![Page 2: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/2.jpg)
Emily Chhen The Pill
and the rules of sexual attraction
![Page 3: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/3.jpg)
Has the pill changed the rules of sexual attraction?
Emily&M&Chhen&
![Page 4: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/4.jpg)
Image&courtesy&of&Google&
• Oral contraceptive
• Prevents pregnancies
• Highly effective
• No protection against STIs, HIV
![Page 5: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/5.jpg)
HOW$$DOES$IT$WORK?$
• Synthe8c&hormones&
– &Estrogen&&– &Proges8n&
1. Prevents&ovula8on&from&occurring&&
2. Thickens&cervical&mucus&
3. Thins&lining&of&uterus&
![Page 6: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/6.jpg)
SINCE$THE$1990s…$NEW$RESEARCH$
The&PILL&and&its&influence&on&a&
woman’s&choice&in&poten8al&
partners?&
![Page 7: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/7.jpg)
MEN$&$WOMEN$
GOAL$=$To$give$future
offspring the best chance of survival.
HOW? • Different immune
systems
WHY? • Reduces
inbreeding • Robust immune
systems
![Page 8: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/8.jpg)
EVIDENCE$FOR:$THE$TBSHIRT$STUDY$
![Page 9: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/9.jpg)
THE$TBSHIRT$STUDY$
NonBPill$users:$
• Preferred&MHCI&
dissimilar&men&
PillBusers:$
• Preferred&MHCI
similar&men&
STUDY:$$
Women&&+&MHCIsimilar&men&&Less&sexually&
sa8sfied&and&more&likely&to&cheat&on&their&
partners&men.&
![Page 10: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/10.jpg)
ATTRACTIVENESS$TO$MEN$
OvulaKng$nonBpill$users$prefer:$
• Symmetrical&male&features&
• More&masculinity&features&(ie.&muscle&tone,&
masculine&voice&and&behaviour)&
![Page 11: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/11.jpg)
PillBusers$prefer:$
• LESS$Symmetrical&male&features&
• LESS$Masculinity&features&(ie.&muscle&tone,&
masculine&voice&and&behaviour)&
ATTRACTIVENESS$TO$MEN$
![Page 12: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/12.jpg)
OvulaKng$women$experience$changes$in:$
• Woman’s&facial&appearance&
• Body&odor&• Vocal&pitch&
ATTRACTIVENESS$TO$MEN$
Become&more&
aTrac8ve&to&men&
![Page 13: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/13.jpg)
PillBusers:$
• Body&odour&–&no&overall&difference&
• Vocal&pitch&–&no&observed&
differences&
ATTRACTIVENESS$TO$MEN$
NonBPill$users$during$ovulaKon:$$
• Body&odour&–&no&overall&&difference&
• Vocal&pitch&–became&
more&aTrac8ve&
![Page 14: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/14.jpg)
COMPETING$FOR$MEN$
• Men&are&more&aTracted&to&ovula8ng&women&
STUDY:$$
• Tips&earned&by&lap&dancers&• Tips&earnings&varied&across&menstrual&cycle&
![Page 15: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/15.jpg)
COMPETITING$FOR$MEN$
• NonIpill&users:&Made&$20USD/hr&more&during&
their&fer8le&phase&
• PillIusers:&no&observa8on&
Meaning?$
• PillIusers,&decreased&ability&to&compete&with&nonIpill&users&
for&men&
![Page 16: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/16.jpg)
LONG&TERM&EFFECTS:&
• Increased&risk&in&recurrent&spontaneous&abor8on?&
• Less&healthy&babies?&
• Rela8onship&dissa8sfac8on&&
• Partnership&breakdown?&
• Women&will&stray?&
![Page 17: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/17.jpg)
![Page 18: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/18.jpg)
EVIDENCE/REASONS$AGAINST:$
• Research&from&Biological&perspec8ve&ONLY&
• Subsequent&tes8ng&&mixed&results&
• Limita8ons&in&research&
![Page 19: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/19.jpg)
LIMITATIONS$
• The&PILL&interfere&with&natural&mate&
preferences.&&BUT&leads&to&altered&mate&
choice&decisions?&
• Small&sample&size&tested&
• Western&monogamous&socie8es&
![Page 20: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/20.jpg)
LIMITATIONS$
• ShortIterm&partners&
• Already&exis8ng&long&term&pairIbond&rela8onships.&What&happens?&
• Difference&between&Pill&and&NonIpill&users?&
• Long&term&consequences?&&
![Page 21: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/21.jpg)
LIMITATIONS$
• ShortIterm&partners&
• Already&exis8ng&long&term&pairIbond&rela8onships.&What&happens?&
• Difference&between&Pill&and&NonIpill&users?&
• Long&term&consequences?&&
![Page 22: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/22.jpg)
CONCLUSION$
Need$to:$
• More&research!&
• Consider&risk&versus&benefits&of&the&PILL&
Thank&you!&
![Page 23: Emily Chhen: The Pill and the Rules of Sexual Attraction](https://reader034.vdocuments.us/reader034/viewer/2022042813/54c0c3374a795976558b45c1/html5/thumbnails/23.jpg)
Emily Chhen
Thank You!