A pooled analysis of more than 26,000 men links very low testosterone to a higher risk of cancer diagnosis and death, but not to prostate cancer. Here is what the study found and why it does not support testosterone supplements.
UCSF researchers engineered CAR-T cells that switch on only inside the brain. In mice, they cleared diffuse midline glioma, a deadly childhood brain cancer. Here is how it works, and why human trials still lie ahead.
A randomised controlled trial from the University of Surrey tested a multi-component supplement aimed at several ageing-related processes at once. After six months, markers of vascular health improved, but the study was small and did not measure clinical outcomes.
The largest crater on Phobos is so big that the impact nearly shattered the tiny Martian moon. Its name honors the woman who kept her husband searching for Mars's moons, and a Japanese probe launched on October 20, 2026 is now on its way to land beside it.
Researchers profiled thousands of blood proteins across the menopause transition and found 16 molecules tied to brain aging and dementia risk that tracked menopause stage more closely than age. Here is what the Nature Medicine study shows, and what it does not.
In aged rats, a two-week treatment with the experimental drug cinaciguat reopened the tiny pores of liver filter cells and brought blood levels of amyloid beta and LDL cholesterol back to youthful levels. Here is what the study shows, and what it does not.
As we age, muscles shift toward slow-twitch fibres even as their mitochondria falter. A Copenhagen-led study in mice suggests this is a defence, not just a failure.
A tiny group of brainstem neurons helps keep blood pressure stable from moment to moment. Losing them destabilises it, even when the average reading looks normal.
NASA's Astronomy Picture of the Day for 26 October 2026 shows M42, the Great Nebula in Orion. Here are the facts about this stellar nursery that are worth knowing, from how to spot it without a telescope to why its distance and size depend on who you ask.