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Does motherhood influence brain aging? New research suggests a positive cognitive association

Longitudinal data from postmenopausal women suggest that cumulative pregnancy duration and breastfeeding history are associated with modestly better cognitive performance later in life. These associations reflect higher cognitive trajectory levels rather than proven slowing of decline, and causality remains uncertain.

5 Feb 2026

Natural ovulation offers a safer path to IVF success

Researchers compare the effects of natural ovulation and external hormone replacement regimens for preparing the uterus before frozen embryo transfer.

4 Feb 2026

PFOA exposure disrupts hormone signaling and impairs embryo implantation in mice

A new experimental study has found that perfluorooctanoic acid (PFOA), a widely used industrial chemical, can interfere with key biological processes required for successful embryo implantation, raising concerns about its potential impact on female fertility.

27 Jan 2026

Natural ovulation matches hormone therapy success in frozen embryo transfer

Natural ovulation before frozen embryo transfer is as effective as hormone treatment for achieving a healthy baby by vitro fertilization (IVF), finds a clinical trial from China published by The BMJ today.

21 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

Self-administered injectable contraceptives face provider hesitancy despite availability

Self-administered injectable contraceptives have been available in the United States for more than two decades, yet a new study has found only about a quarter of reproductive health experts prescribe it - and many are unaware it's even an option.

9 Jan 2026

Pitavastatin shows pomise in overcoming chemotherapy resistance in triple-negative breast cancer

Triple-negative breast cancer (TNBC) is among the most aggressive types of breast cancer, lacking estrogen, progesterone, and HER2 receptors and thus relying primarily on cytotoxic chemotherapy.

7 Jan 2026

Low-dose megestrol strengthens hormone therapy in ER-positive breast cancer

Low-dose megestrol enhances hormone therapy for ER-positive breast cancer, reducing tumor proliferation and improving treatment adherence in the PIONEER trial.

7 Jan 2026

Progesterone mimic plus anti-estrogen treatment slows tumor growth in breast cancer patients

A drug mimicking the hormone progesterone has anti-cancer activity when used together with conventional anti-estrogen treatment for women with breast cancer, a new Cambridge-led trial has found.

5 Jan 2026

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

Menopausal hormone therapy shows no added breast cancer risk for BRCA carriers

Using menopausal hormone therapy (MHT) was not associated with an increased risk of breast cancer in women with inherited mutations in the BRCA1 or BRCA2 genes, according to the results of a matched prospective analysis presented at the San Antonio Breast Cancer Symposium (SABCS), held December 9-12, 2025.

12 Dec 2025

Early pregnancy placenta models show significant effects from PFAS exposure

Per- and polyfluoroalkyl substances (PFAS) are a group of nearly 10,000 long-lasting chemical compounds that stay in the environment and have been linked to adverse health effects on humans, including pregnant women and their unborn children.

4 Dec 2025

Prenatal stress hormones may shape when a baby’s teeth erupt

A study links maternal stress hormones in late pregnancy to the timing of baby teeth eruption, highlighting prenatal factors in early childhood development.

20 Nov 2025

Maternal stress linked to earlier baby teeth

Children have 20 milk teeth, 10 in each jaw. This set of teeth is important for chewing and speaking, and helps to keep space open for the subsequent set of 32 permanent teeth.

18 Nov 2025

New study reveals how the uterus senses force to drive labor

When labor begins, the uterus must coordinate rhythmic, well-timed contractions to deliver the baby safely.

13 Nov 2025

Survival times continue to rise for people with advanced breast cancer

People diagnosed with advanced breast cancer in 2025 can expect to live for an extra six or seven months, compared to the average survival time for patients diagnosed in 2011, according to a major study of patient data in the US presented at the Advanced Breast Cancer Eighth International Consensus Conference (ABC8).

5 Nov 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