ROME—Pope Francis continued to improve from double pneumonia Thursday, the Vatican said, working from his hospital room and going to his private chapel to pray, though doctors said he needs more ...

High cholesterol, or hypercholesterolemia, usually has no apparent symptoms and is therefore labeled as a "silent killer." ...

What if life didn’t require oxygen? For centuries, we've operated under the assumption that oxygen is an essential part of life for all complex organisms. From humans to animals, oxygen powers ...

TOKYO — For nearly 90% of Earth’s history, our planet’s atmosphere contained almost no oxygen, making it completely uninhabitable for humans and most modern life forms. Then, around 2.5 billion years ...

My partner knew the signs to look out for and knew ... were even telling us that there was more oxygen on board and we should have asked for it, but no replacement was offered.

In September 2012, Mr Lemons found himself 300ft under the North Sea for 38 minutes with limited air and no contact with his ... brain-damaged by lack of oxygen were overwhelming.

The researchers analysed the fossil rocks preserved in southern Zimbabwe, which paved the way for investigating the role of the nitrogen cycle and volcanic activity in the growth of life before the ...

Pope Francis is no longer using an oxygen mask to breathe at night and his doctors believe he will continue to improve, the Vatican has said. In the latest update on the pope’s health ...

Pope Francis’s condition continued to improve Wednesday and he no longer needs to use noninvasive mechanical ventilation to ...

A British diver has explained what was going through his mind when he realised he was stuck 300 feet underwater with no oxygen. Saturation diver Chris Lemons was left fighting for his life after ...

When Earth evolved, it did not have the life-supporting oxygen that we breathe today. Researchers have now identified the conditions on the planet before the evolution of oxygen by using rock fossils.