Nighttime drops in ocean oxygen raise energy use in small reef fish. Repeated stress could affect reef health as oceans warm.

Cornell researchers have uncovered a built-in molecular "gate" that controls the production of the molecule nitric oxide, a crucial signaling molecule throughout biology that in humans helps regulate ...

A 91-year-old man was admitted to the hospital with weight loss, dyspnea, and eosinophilia. An anteroposterior chest radiograph obtained 2 months earlier showed bibasilar patchy opacities. A ...

A baby born during a blizzard last year then nearly died from health complications. Today, she is home and gearing up for her first birthday. Andrea and Wyatt Artz welcomed daughter Catherine Artz in ...

These underground rodents are the first mammals found to actively choose air with lower-than-normal oxygen levels. Their remarkable ability to survive these conditions could offer a key model for ...

Javascript must be enabled to use this site. Please enable Javascript in your browser and try again. Have questions about Social Security? Join AARP’s free tele ...

Afya's Q2 2025 results were solid, but the stock faces headwinds from market saturation and regulatory changes in Brazil's medical education sector. Valuation is now more attractive after a 20%+ price ...

Apple has just announced a software update that will enable the missing blood oxygen level measurement capability on the Apple Watch. The update will enable the biosensing feature on the Watch Series ...

DEAR DR. ROACH: I see smart watches that are advertised to measure heart rates, oxygen saturation, blood pressure, and even glucose levels. Are these things accurate? -- A.K. ANSWER: The quality of ...

The Great Lakes water levels are generally on the decline at the current time. Most of the lakes are expected to have below normal water levels over the next six months. The typical water level cycle ...