Hormones News and Research

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Endocrine-disrupting chemicals and adverse life events during pregnancy affect children's development

Research at Karlstad University shows that exposure to endocrine-disrupting chemicals and adverse life events during pregnancy can influence children's behavior and brain development.

14 Jan 2026

Breastfeeding is linked to lower depression and anxiety years later

A decade-long study links breastfeeding to lower anxiety and depression in mothers, suggesting long-term mental health benefits beyond the postnatal period.

13 Jan 2026

Fish study reveals how ovulation triggers sexual receptivity in females

A research team led by Hiroshima University and Tokyo University of Agriculture and Technology have proposed a neuroendocrine mechanism in bony fish that signals ovulation from the ovaries to the brain, using the medaka fish as a model; the first step to elucidate the neural circuits for facilitation of sexual receptivity in female teleosts.

9 Jan 2026

The gut is not just digestive and new evidence shows it actively controls brain function

This comprehensive review synthesizes a decade of human and animal research to explain how the gut and brain communicate through hormonal, neural, immune, and microbial pathways. It highlights how disruptions in these pathways contribute to gastrointestinal, metabolic, and neurological disorders, and how modern therapies are beginning to exploit gut–brain signaling for clinical benefit.

6 Jan 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

Weaker and fragmented circadian rhythms linked to higher dementia risk

Circadian rhythms that are weaker and more fragmented are linked to an increased risk of dementia, according to a new study published on December 29, 2025, in Neurology®, the medical journal of the American Academy of Neurology.

4 Jan 2026

DNA twisting controls how cells respond to estrogen

Estrogens, the main female sex hormone, although they also perform some functions in men, are involved in a myriad of processes, which is why the body changes so much during menopause. This is because estrogens regulate hundreds of genes.

19 Dec 2025

ACE2 protein may play a protective role against high blood pressure and type 2 diabetes

A collaborative study from the MRC Laboratory of Medical Sciences (LMS) and Imperial College London has found that the protein ACE2 may play a protective role against two common conditions, high blood pressure and type-2 diabetes, which affect millions of people worldwide.

19 Dec 2025

Cutting carbs, not fat, may better control appetite in women

Research indicates low-carb diets may enhance appetite regulation and reduce food cues in women with lipedema, offering a dietary intervention advantage.

19 Dec 2025

Estrogen drives gut pain and explains higher rates of IBS in women

Women are dramatically more likely than men to suffer from irritable bowel syndrome (IBS), a chronic condition causing abdominal pain, bloating, and digestive discomfort.

18 Dec 2025

Injuries don’t rise during menstruation in elite women footballers

The study finds no rise in injuries during menstruation in elite football, yet highlights increased severity, urging better tracking for athlete health.

18 Dec 2025

Early embryos and the uterus engage in active communication during implantation

A new study shows that the embryo and the uterine lining conduct an active "conversation" from the very earliest stages of implantation. They engage in a back and forth of tiny packages called extracellular vesicles and lipid droplets, which carry metabolites and signals.

17 Dec 2025

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

Injury burden is higher during menstruation in professional female footballers

The menstrual cycle is a key physiological process in women: it impacts performance, neuromuscular control, metabolism, and immune response.

16 Dec 2025

Tiny blood particles help shuttle a hormone through the body

Researchers at Touro University Nevada have discovered that tiny particles in the blood, called extracellular vesicles (EVs), are a major player in how a group of hormones are shuttled through the body. Physical exercise can stimulate this process.

15 Dec 2025

Scientists create light-controlled versions of cholesterol

High levels of cholesterol are linked to heart disease, stroke, and many other health problems. However, this complex and vital fatty, water insoluble molecule-a lipid-is found in every cell of the body and is not all bad news. It also regulates crucial processes that science has yet to map.

15 Dec 2025

Swapping high-carb snacks for tree nuts cuts food cravings in young adults at metabolic risk

Daily replacement of typical high-carbohydrate snacks with mixed tree nuts for 16 weeks reduced cravings for sweets and fast foods in young adults with early metabolic syndrome risk. This dietary swap improved overall diet quality, measured by the Healthy Eating Index, without increasing body weight or altering short-term glycaemic markers.

14 Dec 2025

Indiana University physician joins FDA panel on male hormone therapy

Helen Bernie, DO, MPH, assistant professor of urology at Indiana University School of Medicine, will participate in an expert panel on testosterone replacement therapy and men's health to be held Wednesday, Dec. 10, by the U.S. Food and Drug Administration. Bernie's role on the panel is that of a clinical expert on men's reproductive health, which is the focus of both her practice and academic research.

12 Dec 2025

TikTok videos about gout often contain misleading information

A new paper in Rheumatology Advances in Practice, published by Oxford University Press, indicates that TikTok videos about gout are commonly misleading, inconsistent, or inaccurate.

11 Dec 2025

What happens to your body during an ultramarathon? New study reveals key metabolic changes

This study tracked ultramarathon runners across 100 km, 160.9 km, and 230 km events to examine real-world metabolic, hormonal, and muscle stress responses. Severe energy deficits, muscle damage, and heterogeneous hormonal shifts were observed, with the greatest strain seen in the 230 km distance.

10 Dec 2025