Learn how oxygen’s early rise could have given complex life the energy boost it needed to evolve.

The most widely accepted scientific explanation for the arrival of all complex life on Earth has had an unsolved mystery at its heart. According to the theory, all plants, animals and fungi, known ...

Medically reviewed by Daniel More, MD Key Takeaways Oxygen therapy can help people with COPD breathe better and do daily activities with less difficulty.There are three types of oxygen therapy: ...

Life on Earth may have learned to breathe oxygen long before oxygen filled the skies. MIT researchers traced a key oxygen-processing enzyme back hundreds of millions of years before the Great ...

Some of Earth’s earliest microbes evolved the ability to use oxygen hundreds of millions of years before it accumulated in ...

Of 3 recommendations provided for home oxygen use in patients with COPD, a strong recommendation was made for providing at least 15 hours per day of long-term oxygen therapy (LTOT) in those with ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

Aerobic respiration began hundreds of millions of years earlier than previously thought, a new study suggests.

A nasal cannula is a medical device that provides supplemental oxygen therapy to people who have lower oxygen levels. There are two types of nasal cannulas: low flow and high flow. The device has two ...

You're likely familiar with cleaning with bleach, but you might not know there is actually a gentler, less pungent form of bleach. Oxygen bleach is a laundry and household cleaning product made famous ...