Global and US guidance still says menopausal hormone therapy is not for dementia prevention, weeks after new autopsy findings drew wide attention.

WHO released updated dementia risk guidance covering 20 modifiable factors, adding air pollution and multidomain programs while flagging where evidence runs out.

A Red Cross medical officer says hospital blood demand has climbed past normal seasonal levels, keeping the national blood crisis active as summer ends.

The last recalled Midwest Poultry eggs expired on August 17, yet the FDA still lists the Salmonella investigation as ongoing, with unexplained illnesses.

CDC confirms 55 illnesses across 15 states tied to Calco and Everything Sprouts alfalfa sprouts, and the grower has issued a recall.

An experimental vaccine kept melanoma from returning or spreading in people at high risk of the skin cancer recurring, drugmakers Moderna and Merck announced Wednesday.

Type 2 diabetes has traditionally been a disease that has affected mostly middle-aged and older adults. But new research from the U.S. to be presented at the Annual Meeting of the European Association for the Study of Diabetes (EASD) in Milan, Italy (Sept. 28–Oct. 2) shows a sharp increase in the rate of new cases of type 2 diabetes since the turn of the century, which has continued to accelerate in recent years. The study is by Dr. Tessa Crume of the Colorado School of Public Health in Aurora, Colorado, and colleagues.

Each person has a unique gut microbial population, with variation shaped by diet, lifestyle and disease. We are seeing a rapid rise in metabolic disorders, obesity and inflammatory diseases that cannot be explained by our relatively stable genetic code. One of the most encouraging findings in common modern diseases is that modifiable factors can outweigh genetic predispositions. Unlike genetics, the microbiome is a dynamic system that responds to the daily choices we make.

Teenagers who are subjected to online bullying are at greater risk of later emotional and behavioral difficulties, research suggests.

For people living with diabetes, managing blood sugar can mean constantly watching the clock, keeping meals and medications on schedule and staying alert to changes in glucose levels. While little can be done about timed meals, researchers have developed a biological system that detects rising blood sugar levels and automatically responds by releasing medication to bring glucose back down.