Hormone News and Research

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A hormone is a chemical released by one or more cells that affects cells in other parts of the organism. Only a small amount of hormone is required to alter cell metabolism. It is essentially a chemical messenger that transports a signal from one cell to another.

Immunotherapy may help women with early ovarian insufficiency to conceive babies

A pilot study from Karolinska Institutet shows that immunotherapy may enable stimulation of egg maturation in women with autoimmune POI (premature ovarian insufficiency) – a condition that usually leads to infertility.

24 Jun 2026

Eating 90 g of wholegrains daily linked to lower breast cancer risk

Research indicates that long-term wholegrain intake per Nordic guidelines is associated with reduced breast cancer risk, emphasizing food type differences.

24 Jun 2026

USC study links modified Mediterranean diet to longer lifespan

A plant- and fish-based, low-protein diet paired with small amounts of an amino acid commonly found in eggs, meat and dairy increased healthy lifespan and decreased frailty and fat mass in mice, according to a new USC study published today in the journal Cell Metabolism.

23 Jun 2026

Lifetime estrogen exposure linked to improved brain health in women

Researchers from the University of Kansas have shown a link between reproductive hormone exposure throughout life and brain health in 459 women aged 65 to 80.

23 Jun 2026

Artificial intelligence helps breast cancer patients avoid unnecessary chemotherapy

Research led by RCSI University of Medicine and Health Sciences and University College Dublin (UCD) has identified immune markers that could help doctors more accurately determine which breast cancer patients are unlikely to benefit from chemotherapy, potentially sparing some patients from unnecessary treatment.

23 Jun 2026

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

Elite athletes with higher vitamin D show healthier lipid profiles

Higher serum 25-hydroxyvitamin D levels were independently associated with lower LDL-C, triglycerides, and lipoprotein(a) in 773 male professional athletes. The cross-sectional study cannot establish causality, but it suggests that vitamin D status may be linked to cardiovascular risk-related lipid markers, even in elite athletic populations.

23 Jun 2026

Trial identifies 4 grams a day as the tested safe level for L-tyrosine in healthy men

A randomized, crossover trial in healthy adult men found that 4 weeks of L-tyrosine supplementation at doses up to 4 g/day did not cause clinically meaningful changes in safety markers, diet, blood pressure, or body measures. The highest tested dose, 4 g/day, was identified as the no-observed-adverse-effect level under the study’s four-week conditions, although broader and longer-term studies are still needed.

23 Jun 2026

Optimized proximity labeling platform tracks cellular protein communication networks

The body's organs are in constant communication. Fat tissue tells the liver when to store or release energy, the immune system signals localized inflammation, and thousands of proteins carry these messages to organs throughout the body.

22 Jun 2026

New human protein atlas maps how cancer rewires the body’s tissues

Researchers created a DIA-MS atlas of 13,609 proteins across 2,856 samples from fetal, healthy adult, paired non-tumor, and tumor tissues. The resource maps tissue-specific protein patterns, cancer-associated changes, organ-specific drug-toxicity signals, and candidate therapeutic targets.

21 Jun 2026

Estradiol changes may shape how much women move during the menstrual cycle

A 28-day wearable-sensor study of 26 healthy naturally menstruating women found that active energy expenditure varied across the menstrual cycle and was higher in the early follicular phase than the late follicular phase.

21 Jun 2026

Study links menopause and hormone therapy status to modifiable health behaviors

Menopause is associated with a number of adverse health effects, some of which can be mitigated by an array of modifiable health behaviors (MHBs), including diet, exercise, and sleep duration.

18 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

Gut microbes may help explain why obesity and type 2 diabetes become harder to reverse

This review describes how gut microbial messengers, including SCFAs, microbiota-modified bile acids, neuroactive metabolites, and extracellular vesicles, may shape obesity and type 2 diabetes through the microbiota-gut-brain axis.

17 Jun 2026

Men's fertility-friendly underwear may be briefs without benefits

A narrative review found that tight-fitting underwear may modestly raise scrotal temperature and is inconsistently linked to lower sperm production measures. However, current evidence does not show that switching to looser underwear improves real-world fertility outcomes.

17 Jun 2026

Oral contraceptive pills may increase binge eating in some women

A new study from Michigan State University found increases in binge eating when taking hormone pills in the form of oral contraceptives - but not in all women.

17 Jun 2026

Higher BMI raises risk for 19 cancers as global review expands the obesity-cancer link

A major systematic review and meta-analysis links higher BMI to increased risk of 19 cancer types, including leukemia, non-Hodgkin lymphoma, bladder cancer, and glioma, which were not previously recognized in major consensus reports. The study also reveals regional and sex-based variation in cancer risk, with genetic evidence generally supporting many observational links while highlighting the need for more diverse global cohorts.

17 Jun 2026

Tirzepatide activates calorie-burning brown fat to combat obesity

Tirzepatide doesn't just help people lose weight; it also activates brown adipose tissue, representing a major milestone in obesity research, according to a study being presented Monday at ENDO 2026, the Endocrine Society's annual meeting in Chicago, Ill.

16 Jun 2026

Study identifies top predictors for weight loss using tirzepatide

One of the largest real-world studies of people taking GLP-1 medications found women, those without pre-existing conditions such as type 2 diabetes and high blood pressure, and behavioral factors such as previously setting a weight goal were the best predictors of total weight loss, according to a study being presented Monday at ENDO 2026, the Endocrine Society's annual meeting in Chicago, Ill.

16 Jun 2026

Hormone cycles dictate how the brain absorbs neuroprotective drugs

Consider what we ask of a clinical trial. We gather people who differ in nearly every way that matters, we give them the same drug at the same dose, and then we average the result and call the average truth.

16 Jun 2026