Apple’s long-running battle over the Apple Watch’s blood oxygen sensor has ramped up again, with a new trade review and a ...

Scientists accidentally discovered how an old blood pressure drug hydralazine could fight aggressive brain cancer by ...

A Penn-led team has revealed how hydralazine, one of the world's oldest blood pressure drugs and a mainstay treatment for ...

The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do. A new study suggests gray seals (Halichoerus grypus) can sense the level of oxygen in ...

It's well known that exercise is good for your brain. For years, scientists have shown even a single session of heart-pumping ...

Bluish hands, known as peripheral cyanosis, can be a harmless response to cold but may signal poor circulation or serious ...

A group of Penn researchers found that a common blood pressure medicine can be used to prevent brain cancer cells from ...

Routine blood work is a simple but powerful tool for detecting hidden health issues before they become serious. Sudden ...

Research led by Megan Matthews has solved a 70-year old medical mystery: how one of the oldest FDA-approved drugs for ...

It’s one thing to oppose the death penalty. Specious arguments against nitrogen asphyxiation are a distraction and an ...

Low oxygen levels, or hypoxia, in early life impaired lung blood vessel growth, leading to severe pulmonary hypertension in a ...

The Apple Watch SE 3 does nearly everything the Series 11 does, yet it costs $150 less. It’s also the best entry-level watch I’ve tested. Here’s why.