#sexualconflict in action: #bonobo males successful in tracking female probability of conception despite their extended sexual swellings being confusing in relation to #ovulation
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3003503
Male bonobo mating strategies target female fertile windows despite noisy ovulatory signals during sexual swelling
Fertility signals such as anogenital swelling in primates, are assumed to play a key role in the evolution of intersexual dynamics. This study in bonobos shows that, despite noisy female fertility signals, males adjust their mating effort to cover ovulatory windows, challenging the social function of these signals.
Rappel d'un perturbateur endocrinien :
l' #oestrogene qui circule dans le #sang -> se fixe sur le récepteur d'une cellule pour envoyer le signal de l' #ovulation #fertilite
ex : #phtalate chimique peut imiter l'oestrogene et se fixer aussi sur le récepteur qui est alors bloqué -> aucun signal envoyé pour l'ovulation + oestrogènes doivent trouver récepteur libre = pas de procréation.
Les #parfum : https://mastodon.social/@cobrate/115685744295330772
1/2
#sante #science #alimentation #pollution #foetus
#LHSurge →
#ไข่ตก (
#Ovulation ) = ไข่ถูกปล่อยออกมา * โอกาสท้องสูงสุดถ้ามีเพศสัมพันธ์ก่อนวันไข่ตก 2 วันถึงหรือวันไข่ตก 3) หลังไข่ตก *
#Follicle กลายเป็น
#CorpusLuteum → หลั่ง
#Estrogen +
#Progesterone -
#Progesterone ทำให้ผนังมดลูกพร้อมรับตัวอ่อน * ถ้ามีการปฏิสนธิ →
#HCG ที่สร้างจากตัวอ่อน รักษา
#CorpusLuteum ไว้ * ถ้าไม่มีการปฏิสนธิ →
#CorpusLuteum ฝ่อ → ฮอร์โมน
#Progesterone ตก → ผนังมดลูกหลุดลอก = ประจำเดือน . 💡 สรุป *
#รอบเดือน =
Scents of Fertile Women Attract and Relax Men. Ovulating women produce three organic chemicals that, when vaporized, are pleasing to men and trigger their more favorable opinion of the women emanating them.
#ovulation #scents #cycle #appearance https://www.instagram.com/p/DNd97UEOGKy/
Howard G. Smith MD, AM on Instagram: "Scents of Fertile Women Attract and Relax Men
Ovulating women produce three organic chemicals that, when vaporized, are pleasing to men and trigger their more favorable opinion of the women emanating them. This intriguing study from the University of Tokyo’s Department of Applied Biological Chemistry and its International Research Center for Neurointelligence.
During the study, 84 scent samples, collected from women during various phases of their menstrual cycles, were presented to 21 men. Each odor was rated for its level of pleasantness, its effect on the rater’s mood, and its impact on the rater’s impression of women in pictures.
The 3 compounds prevalent during ovulation, geranylacetone, tetradecanoic acid, and hexadecenoic acid, were rated as pleasing, tended to relax and de-stress the male raters, and were associated with more positive impressions of the pictured women.Though the researchers stopped short of calling these organic chemicals pheromones, they did label them as pheromone-like.
The bottom line: men and women should be aware that natural body scents could be working behind the scenes in a positive or negative way.
https://www.news-medical.net/news/20250728/Female-body-odor-variations-can-shape-male-behavior-and-emotions.aspx
https://www.sciencedirect.com/science/article/pii/S2589004225013483
#ovulation #scents #cycle #appearance"
0 likes, 0 comments - drhowardsmithreports on August 17, 2025: "Scents of Fertile Women Attract and Relax Men
Ovulating women produce three organic chemicals that, when vaporized, are pleasing to men and trigger their more favorable opinion of the women emanating them. This intriguing study from the University of Tokyo’s Department of Applied Biological Chemistry and its International Research Center for Neurointelligence.
During the study, 84 scent samples, collected from women during various phases of their menstrual cycles, were presented to 21 men. Each odor was rated for its level of pleasantness, its effect on the rater’s mood, and its impact on the rater’s impression of women in pictures.
The 3 compounds prevalent during ovulation, geranylacetone, tetradecanoic acid, and hexadecenoic acid, were rated as pleasing, tended to relax and de-stress the male raters, and were associated with more positive impressions of the pictured women.Though the researchers stopped short of calling these organic chemicals pheromones, they did label them as pheromone-like.
The bottom line: men and women should be aware that natural body scents could be working behind the scenes in a positive or negative way.
https://www.news-medical.net/news/20250728/Female-body-odor-variations-can-shape-male-behavior-and-emotions.aspx
https://www.sciencedirect.com/science/article/pii/S2589004225013483
#ovulation #scents #cycle #appearance".
Chaque femme naît avec un trésor : un stock d’ovules prêts à attendre parfois plus d’un demi-siècle avant d’être sollicités. Comment ces cellules, si précieuses et vulnérables, peuvent-elles survivre aussi longtemps, immobiles mais intactes ? Plongeons dans un mécanisme biologique fascinant qui pourrait redéfinir la médecine reproductive.
#sciences #santé #femmes #reproduction #fertilité #menstruation #ovulation
https://mesplaisirs.com/la-science-decouvre-comment-les-ovules-dorment-pendant-50-ans-sans-vieillir/
La science découvre comment les ovules dorment pendant 50 ans… sans vieillir - Mes Plaisirs Magazine
Dans le tumulte du corps humain, où chaque cellule vit, meurt et renaît à une cadence effrénée, un groupe se distingue avec une élégance discrète : les ovules. Là où les globules rouges ne durent que 120 jours, et les cellules intestinales à peine une poignée, les ovules, eux, peuvent patienter cinquante ans. Sans bruit.
Unlock Fertility: Basal Body Temperature Guide
Learn how tracking your Basal Body Temperature (BBT) daily can help identify ovulation and your fertile window for family planning. Understand the BBT method.
Top talk by one of the world's leading #primatologists Carel van Schaik on 'The Truth About Eve'. He uses vast expertise on monkey/ape systems where #females are well able to resist #dominance by bigger #males (think vervets, bonobos) via leverage of female #coalitions and concealed #ovulation. Then argues how #gender #egalitarianism was a key original feature of our becoming #human.
https://youtu.be/3KWj3JxsXes?si=w2w8tTcjogwXWhSQ
Lecture | The Truth about Eve: the Invention of Gender Inequality | Carel van Schaik
Ovulation is complex & tightly controlled in a spatiotemporal manner, but how? This study reports single-cell & spatial transcriptomics in mouse
#ovaries, providing specific temporal & localization profiles across
#ovulation as a community resource
@PLOSBiology https://plos.io/4ej19NT
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MOST of us are familiar with the ‘standard’ period symptoms – cramps, bloating and fatigue. But our hormones can impact us in ways we may never have considered. The biggest drivers are the fe…
Radical Anthropology
cob
ร้านขายยา ย่งเชียงตึ๊ง
Howard Smith MD, AM
Mes Plaisirs Magazine
Dr Priya Sammani ( MBBS ,DFM )
PLOS Biology
Bernard Aybout
De Groene Cup