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.

Hydroxytyrosol from olives shows new promise as a brain-protective compound

This review highlights hydroxytyrosol's role as a neuroprotective agent, activating key pathways for mental and vascular health through olive-derived compounds.

29 Oct 2025

AI-powered LifeClock forecasts diseases years before symptoms appear

Researchers have developed LifeClock, an AI-driven biological clock trained on over 24 million electronic health records to estimate biological age across the human lifespan. The model accurately predicts disease risk years in advance, revealing distinct developmental and aging processes.

28 Oct 2025

Uncovering mechanisms of neuronal migration in the adult brain

Researchers have discovered how newly created neurons depend on blood flow in the adult brain to travel from their site of origin to their final location.

28 Oct 2025

Circadian rhythm disruptions may increase the risk of cardiovascular disease

As modern lifestyles increasingly challenge the body's natural circadian rhythm, the American Heart Association is spotlighting the potential health consequences of regular disruptions to our body's internal clock with a new scientific statement published today in its flagship journal Circulation.

28 Oct 2025

New drug can have a promising effect in cancer patients with active brain metastases

An international clinical study led by the Medical University of Vienna shows that the drug patritumab deruxtecan (HER3-DXd) can have a promising effect in patients with active brain metastases of various tumor types.

28 Oct 2025

Air pollution, even below EPA guidelines, increases breast cancer risk

Women living in parts of the United States with lower air quality, especially neighborhoods with heavy emissions from motor vehicles, are more likely to develop breast cancer, according to a multiyear analysis involving more than 400,000 women and 28,000 breast cancer cases.

28 Oct 2025

Obesity’s health risks shift with age and sex, new genetic study reveals

Using a new time-resolved Mendelian randomization approach in over 360,000 UK Biobank participants, Karlsson et al. revealed that the causal impact of obesity changes across life, with distinct age- and sex-specific risk patterns for diabetes, heart disease, atrial fibrillation, and osteoarthritis.

27 Oct 2025

New study reveals how the glucocorticoid receptor forms complex structures inside cells

Drugs to treat inflammatory and autoimmune diseases - such as asthma, psoriasis, rheumatoid arthritis or Chrousos syndrome - act mainly through the glucocorticoid receptor (GR).

27 Oct 2025

Exploring the link between maternal care and attachment in mouse pups

Children can sometimes develop health, behavioral, and attachment issues that persist when their needs are not met by their caregiver.

27 Oct 2025

Scientists uncover excessive maturation and aging in the hippocampus

In a groundbreaking study, researchers at Fujita Health University and the Tokyo Metropolitan Institute of Medical Science have uncovered a previously overlooked form of brain abnormality linked to anxiety: excessive maturation and aging in the hippocampus, a state they term "hyper-maturity."

27 Oct 2025

Study finds bright nights raise risk for stroke and heart failure in adults over 40

A large UK Biobank study found that higher night-time light exposure is linked to significantly greater risks of coronary artery disease, stroke, heart failure, and other cardiovascular conditions. The findings suggest maintaining darker nights and adequate daytime light could support heart health.

26 Oct 2025

Breakthrough menopause drug for hot flashes and night sweats gains FDA approval

The federal Food and Drug Administration today approved a new menopause drug that reduces hot flashes and night sweats after the drug was successfully tested at UVA Health and other sites in the United States and around the world.

24 Oct 2025

Breakthrough combo therapy lowers death risk in recurrent prostate cancer

Men whose prostate cancer returns after surgery or radiation therapy may now benefit from a new drug combination shown in clinical trials to cut the risk of death by more than 40%.

23 Oct 2025

Antibody discovery could provide new treatment options for aggressive breast cancers

A new potential antibody therapy strategy which restricts the growth of treatment-resistant breast cancers has been developed by scientists.

23 Oct 2025

Unveiling the dual role of HSL protein in adipocytes

Our fat cells, called adipocytes, do more than just store extra weight. They play a key role in managing the body's energy.

23 Oct 2025

Mediterranean diet linked to dramatically lower odds of endometriosis

A new case–control study found that women with stronger adherence to the Mediterranean diet had dramatically lower odds of endometriosis. Diets rich in fruits, vegetables, fish, and legumes were protective, while higher intakes of meat, dairy, and refined whole grains were linked to increased risk.

22 Oct 2025

Hunger and hormones drive aggression in mice

Researchers at the Francis Crick Institute have found that hunger can make virgin female mice aggressive towards pups, but only in certain hormonal states.

22 Oct 2025

Understanding the neural mechanisms behind food choices

Feeding in mammals is controlled by a complex neural system. Although several key neural pathways related to total calorie intake have been extensively studied, it is still unclear how food choices are regulated and how they influence overall feeding behavior.

22 Oct 2025

Night shift work may raise risk of irritable bowel syndrome

The study indicates that night shift work increases irritable bowel syndrome risk, particularly among those with obesity, due to circadian rhythm disturbances.

22 Oct 2025

Fortress, filter, and gatekeeper: New insights into how the blood-brain barrier safeguards the brain

Researchers provide a comprehensive overview of the blood-brain barrier (BBB), detailing its cellular architecture, transport mechanisms, and role in protecting the brain from toxins. The paper highlights how BBB dysfunction contributes to neurological diseases and explores emerging technologies to overcome drug delivery challenges.

21 Oct 2025