Health

Nature Medicine, Published online: 13 November 2025; doi:10.1038/s41591-025-04045-3

Challenges in studying microplastics in human brain

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Nature Medicine, Published online: 12 November 2025; doi:10.1038/s41591-025-04031-9

Cities are often at the forefront of creative thinking on policy opportunities; this Perspective outlines an agenda for urban health research that promotes a virtuous cycle by which population health and environmental sustainability support and reinforce each other.

Nature Medicine, Published online: 12 November 2025; doi:10.1038/s41591-025-04048-0

The evolving landscape of cardiovascular health in Africa: insights from WHO AFRO

Nature Medicine, Published online: 12 November 2025; doi:10.1038/s41591-025-04082-y

Scientific integrity must guide autism research and communication — now more than ever.

Nature Medicine, Published online: 11 November 2025; doi:10.1038/s41591-025-04047-1

Studies with open-label placebos — sugar pills given without deception — suggest that the placebo effect is more psychologically complex than previously thought.

Nature Medicine, Published online: 11 November 2025; doi:10.1038/s41591-025-04081-z

In older adults without cognitive impairment with higher levels of brain amyloid-β, physical inactivity was associated with accelerated accumulation of tau pathology and faster cognitive and functional decline. These findings suggest that even modest increases in daily physical activity might be linked to slower progression of preclinical Alzheimer’s disease.

Both houses of the U.S. Congress have introduced legislation to improve and enhance how sunscreens are produced, tested, and sold. The bills, each called the SAFE Sunscreen Standards Act, also aim to revamp the sunscreen regulation process, which some experts consider restrictive to the point that it inhibits development of new, better, and safer sunscreens. Such innovation, they say, could lead more people—especially those with darker skin—to use sunscreens more consistently. Over 210,000 new cases of skin cancer are projected to be diagnosed this year in the United States, while more than 80,000 cases are diagnosed in Canada every year.

Nature Medicine, Published online: 10 November 2025; doi:10.1038/s41591-025-04044-4

As presented at the American Heart Association Conference 2025, patients with chest pain and without obstructive coronary artery disease benefit from treatment informed by cardiovascular magnetic resonance.

Nature Medicine, Published online: 10 November 2025; doi:10.1038/s41591-025-04015-9

Research does not always ‘speak for itself’; high-fidelity uptake of science into policy requires active engagement between researchers and policymakers. This Perspective offers tangible recommendations to help bridge the research-to-policy gap.