September 2025 kicked off with a stretch of unseasonably high temperatures across much of western North America. 

Some sugar substitutes may come with unexpected consequences for long-term brain health, according to a study published in the September 3, 2025, issue of Neurology®, the medical journal of the American Academy of Neurology. 

New catalyst could make mixed plastic recycling a reality.

A new study reveals a wide variety of approaches across the U.S. for establishing building elevation guidelines that account for future sea level rise, highlighting a need for more standardized methods.

An international multi-center study has revealed how diet plays a greater role in the prevalence of obesity globally than was previously understood, according to findings published in the Proceedings of the National Academy of Sciences.

Hanauma Bay Nature Preserve, a popular snorkeling destination that attracts nearly a million annual visitors, underwent a remarkable and rapid recovery when tourism ceased during the 2020 COVID-19 pandemic.

Environmental scientists are increasingly using enormous artificial intelligence models to make predictions about changes in weather and climate, but a new study by MIT researchers shows that bigger models are not always better.

Heart rate is one of the most basic and important indicators of health, providing a snapshot into a person’s physical activity, stress and anxiety, hydration level, and more.

Methotrexate, a common medication used to treat rheumatoid arthritis, has a newly recognised useful secondary effect to lower blood pressure and potentially reduces the risk of heart disease in people with this condition.

A team of astronomers has detected for the first time a growing planet outside our solar system, embedded in a cleared gap of a multi-ringed disk of dust and gas.