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Articles on Oxygen

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Family members of COVID-19 infected patients stand in a queue with empty oxygen cylinders outside the oxygen filling centre in New Delhi, India. Photo by Naveen Sharma/SOPA Images/LightRocket via Getty Images

It’s possible to build stronger systems to deliver oxygen: here’s what it takes

An effective oxygen system requires prompt recognition of who needs oxygen, a reliable oxygen supply and safe delivery to those who need it.
David Clode/Unsplash

Curious kids: how do gills work?

Rather than breathing in and out through the mouth, fish use a one-way system, passing water in one direction over their gills.
Breathing pure oxygen would be like fireworks exploding in your body. And that’s not always a good thing. Shutterstock

Curious Kids: what happens if you breathe pure oxygen?

You might think the more oxygen you breathe in the better. But too much oxygen can make you sick.
Her deep breath has to get to the baby. electravk/Moment via Getty Images

How does a baby ‘breathe’ while inside its mom?

A fetus needs oxygen long before its lungs work and it’s exposed to the air. Some ingenious biochemistry explains how the mother’s blood delivers it.
Alfred Nobel made his fortune through the invention of dynamite. Paramonov Alexander/Shutterstock.com

Discovery of how cells sense oxygen levels earns Nobel Prize

Oxygen is vital for life, so much so that cells can sense when there isn’t enough and adapt almost instantly. So how do they do it? The winners of the 2019 Nobel Prize for Physiology figured it out.

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