Anovulation News and Research

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The menstrual cycle changes heart-rate variability but not strength

Menstrual cycle phases influence heart autonomic regulation, showing HRV variations, yet muscle performance and mood states remain largely unchanged.

23 Jun 2026

PMOS rethink reframes a common hormone disorder as a whole-body disease

A new review reframes PCOS, now proposed as PMOS, as a systemic endocrine and metabolic disorder shaped by genetic, epigenetic, ovarian, metabolic, and neuroendocrine pathways. It highlights why inconsistent diagnosis and symptom-focused care have limited progress, while targeted therapies, biomarkers, machine learning, and organ-on-chip models may support more personalized treatment.

18 Jun 2026

Wearable devices may help detect menstrual health changes earlier

Digital health tools, including wearables, provide critical data on menstrual health, enhancing understanding of hormonal fluctuations and women's well-being.

27 May 2026

Can ketogenic diets help PCOS? New analysis points to weight and insulin gains

A systematic review and meta-analysis of 15 studies found that ketogenic diets were associated with short-term reductions in body weight, waist circumference, insulin resistance, and some reproductive hormones in women with polycystic ovary syndrome, primarily among those with overweight or obesity. However, substantial heterogeneity, low certainty of evidence, limited safety reporting, and short follow-up periods mean the clinical effectiveness and long-term sustainability of ketogenic diets in PCOS remain uncertain.

5 Jan 2026

How Traditional Chinese Medicine may reshape the gut microbiome to ease insulin resistance in PCOS

This review synthesizes evidence that gut microbiota dysbiosis contributes to insulin resistance and symptom severity in polycystic ovary syndrome through impaired barrier function, inflammation, and altered microbial metabolites. It evaluates how Traditional Chinese Medicine may modulate these pathways while highlighting major gaps in clinical validation, safety, and standardization.

16 Dec 2025

Mild breast tenderness and swelling found to be part of healthy menstrual cycles

A one-year study in healthy women who were also consistently cycling every 21-36 days and had normal ovulation, showed that it is usual to experience mild breast tenderness and swelling before the next period.

27 May 2025

Your BMI could be affecting your menstrual cycle—researchers explain how

Extreme BMIs—both high and low—are linked to irregular menstrual cycles and increased risk of anovulatory cycles, highlighting the importance of maintaining a normal BMI for reproductive health.

2 Mar 2025

How lifestyle-based interventions help manage PCOS

Studies indicate that lifestyle modifications can alleviate PCOS symptoms, improving insulin resistance and hormonal balance through diet and physical activity.

21 Jan 2025

Long-term exposure to traffic noise and air pollution linked to increased infertility risk

Researchers explore the associations between long-term exposure to road traffic noise, air pollution, and infertility in men and women.

9 Sep 2024

Drinking coffee daily linked to decreased PCOS risk

A recent study reveals that daily coffee consumption significantly reduces the risk of developing PCOS symptoms. Women who drank two cups of coffee daily were at a 70% lower risk of PCOS.

17 Jul 2024

Study links low oxytocin levels to symptoms of polycystic ovary syndrome

The role of oxytocin (OT) in polycystic ovary syndrome (PCOS).

29 May 2024

New review aims to help clinicians diagnose and manage PCOS

A recent review article in CMAJ explores the state of current knowledge on the diagnosis and treatment of this chronic disorder.

30 Jan 2024

Can oral contraceptive therapy improve the vaginal microbiome in women with PCOS?

The impact of the contraceptive medication-induced change in hormonal levels on the vaginal microbiome.

7 Dec 2023

Passing on Polycystic Ovary Syndrome: Health risks for Male offspring of Women with PCOS

In this interview, we spoke to two researchers from the Karolinska Institutet about their latest work that investigated how PCOS can affect the health of future generations of men.

29 May 2023

The role of myostatin in female fertility

A new study discusses some of the key functions of myostatin in female reproductive health and disease.

6 Jul 2022

Stresses of the COVID-19 pandemic led to disturbed ovulation, finds study

Life disruptions and the stresses of the COVID-19 pandemic led to disturbed ovulation with decreased progesterone durations or levels, according to research being presented Sunday at ENDO 2022, the Endocrine Society's annual meeting in Atlanta, Ga.

13 Jun 2022

Preconception weight loss may not increase obese woman's chances of delivering a healthy baby

Health care professionals often encourage women with obesity to lose weight prior to trying to conceive or start infertility treatments.

18 Jan 2022

Prehistoric baby bottles: evidence animal milk fed to prehistoric babies

A new study shows that infants in Bronze and Iron Age communities were fed milk using feeding vessels of clay. This report, appearing on September 25, 2019, in the journal Nature, shows the important place that animal milk has played in human food for thousands of years.

26 Sep 2019

Study examines effects of lifestyle-intervention in obese women undergoing fertility treatment

Women who are overweight or obese pose an ongoing challenge for the fertility clinic. Many studies show that these patients are at increased risk of infertility and are less likely than normal-weight women to conceive after fertility treatment.

4 Jul 2016

New genome-wide association study sheds light on the underlying biology of polycystic ovary syndrome

Polycystic ovary syndrome (PCOS) has been passed down in many families for generations -- causing reproductive and metabolic health problems for millions of women around the world. Yet, its cause remains unknown despite more than 80 years of research since the disorder was first described in 1935.

20 Aug 2015