Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Menstrual Cycle01:19

The Menstrual Cycle

3.6K
The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
3.6K
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

1.6K
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
1.6K
Mate Choice01:20

Mate Choice

11.8K
Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
11.8K
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

45.8K
VSEPR Theory for Determination of Electron Pair Geometries
45.8K
The Nitrogen Cycle01:49

The Nitrogen Cycle

60.2K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
60.2K
Frequency-dependent Selection01:21

Frequency-dependent Selection

24.0K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
24.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Casting the Right Net: Childhood Socioeconomic Status Predicts Self-Perceived Mate Value and Mating Standards After Financial Threat.

Personality & social psychology bulletin·2026
Same author

Validation of an Enzyme-Linked Immunosorbent Assay for Measuring Leptin, a Key Metabolic Hormone, in Dried Blood Spot Samples.

American journal of human biology : the official journal of the Human Biology Council·2025
Same author

TDP-43 loss induces cryptic polyadenylation in ALS/FTD.

Nature neuroscience·2025
Same author

Circles ReBoot: A Feasibility Study and Preliminary Outcome Evaluation.

International journal of offender therapy and comparative criminology·2025
Same author

How community connection, homophobia, and racism shape gene expression in sexual minority men with and without HIV.

Health psychology : official journal of the Division of Health Psychology, American Psychological Association·2025
Same author

California Stress, Trauma, and Resilience Study (CalSTARS) protocol: A multiomics-based cross-sectional investigation and randomized controlled trial to elucidate the biology of ACEs and test a precision intervention for reducing stress and enhancing resilience.

Stress (Amsterdam, Netherlands)·2024

Related Experiment Video

Updated: Feb 2, 2026

High-Resolution Comparison of Bacterial Conjugation Frequencies
05:18

High-Resolution Comparison of Bacterial Conjugation Frequencies

Published on: January 10, 2019

11.4K

Mating Effort Predicts Human Menstrual Cycle Frequency.

Jeffrey Gassen1, Hannah K Bradshaw1, Sarah E Hill1

  • 11 Department of Psychology, Texas Christian University, Fort Worth, TX, USA.

Evolutionary Psychology : an International Journal of Evolutionary Approaches to Psychology and Behavior
|November 23, 2018
PubMed
Summary
This summary is machine-generated.

Human menstrual cycle length and regularity may be influenced by mating effort. Women projecting more mating success and adopting faster life history strategies tend to have shorter, more regular cycles, suggesting a calibration to reproductive investment.

Keywords:
fecunditylife history theorymating effortmating successmenstrual cycle

More Related Videos

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
20:36

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling

Published on: July 4, 2007

9.2K
Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
09:55

Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus

Published on: December 25, 2016

9.9K

Related Experiment Videos

Last Updated: Feb 2, 2026

High-Resolution Comparison of Bacterial Conjugation Frequencies
05:18

High-Resolution Comparison of Bacterial Conjugation Frequencies

Published on: January 10, 2019

11.4K
Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
20:36

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling

Published on: July 4, 2007

9.2K
Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
09:55

Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus

Published on: December 25, 2016

9.9K

Area of Science:

  • Evolutionary biology
  • Human reproductive ecology
  • Behavioral endocrinology

Background:

  • The human menstrual cycle exhibits significant variability within and between individuals.
  • Understanding factors influencing menstrual cycle characteristics is crucial for reproductive health and evolutionary studies.

Purpose of the Study:

  • To investigate whether human menstrual cycle frequency is associated with projected fitness payoffs from mating effort.
  • To test the hypothesis that environmental conditions and life history strategies influence menstrual cycle patterns related to mating investment.

Main Methods:

  • Structural equation modeling was employed to analyze the relationships between life history strategies, mating effort, and menstrual cycle characteristics.
  • The study examined the predictive power of cycle frequency on mating effort versus the reverse directionality.

Main Results:

  • Results supported the hypothesis: women with faster life history strategies and higher projected mating success demonstrated shorter, more regular menstrual cycles.
  • Increased mating effort was associated with these shorter and more regular cycles.
  • The model where cycle frequency predicted mating effort showed a poor fit, supporting the primary hypothesis.

Conclusions:

  • The length and regularity of the human menstrual cycle may be adaptively calibrated to an individual's investment in mating effort.
  • This study provides empirical evidence linking reproductive timing and mating strategies in human females.