Levels of six RNA molecules in the blood ID’d older adults likely to survive two more years. Whether it will work for other ...

In iOS 26.4, Apple added an Average Bedtime metric to the Sleep section of the Health app, letting users better monitor how bedtime impacts sleep quality. Under a new Sleep Highlight, Apple lists the ...

Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that ...

Feb 20 (Reuters) - (Health Rounds is published on Tuesdays and Thursdays. Think your friend or colleague should know about us? Forward this newsletter to them. They can also subscribe here.) Diabetes ...

New noninvasive tools reveal that subtle shifts in brain blood flow and oxygen use may mirror key markers of Alzheimer’s risk ...

The brain relies on real-time delivery of oxygen and nutrients through its microvasculature, which threads through neural ...

How do blood vessels stay strong, flexible, and responsive to the body's changing need for oxygen and nutrients? The answer lies not only in biology—but also in physics. Researchers at Åbo Akademi ...

The brain relies on real-time delivery of oxygen and nutrients through its microvasculature, which threads through neural ...

Cult German filmmaker Ulrike Ottinger teams up with Nobel laureate Elfriede Jelinek, no less, for a loopy, queer Viennese vampire hunt that couldn't be more exquisitely tailored for its star. A droll, ...

A closely watched clinical trial in Britain that screened blood for early detection of cancer did not show a reduction in diagnoses at later stages of the disease. By Rebecca Robbins and Gina Kolata A ...

Michigan missed the year's first solar eclipse Tuesday, Feb. 17, but the first lunar eclipse of 2026 will be visible in just two weeks. A "ring of fire" annular solar eclipse occurred early Tuesday ...