First, pause and take a deep breath. When we breathe in, our lungs fill with oxygen, which is distributed to our red blood cells for transportation throughout our bodies. Our bodies need a lot of ...

Oxygen levels in the Earth’s atmosphere are likely to have “fluctuated wildly” one billion years ago, creating conditions that could have accelerated the development of early animal life, according to ...

In a proof-of-principle study, researchers have shown that smartphones are capable of detecting blood oxygen saturation levels down to 70%. This is the lowest value that pulse oximeters should be able ...

Normal blood oxygen level is either 95%-100% SpO2 on an oximeter or 80-100 mm Hg from an ABG test. ABG tests are more accurate than pulse oximeters, which have a ...

Smartwatches can measure everything from heart rate to sleep quality, but one health metric has become particularly relevant over the past two years: blood oxygen saturation. Two of the world's ...

Oxygen is paramount for the survival of many beings on Earth. Therefore, when a team of researchers found that oxygen levels on Earth are in danger of dropping by a millionfold, they were evidently ...

Earth's magnetic field and oxygen levels are inextricably linked, new research suggests. The strength of the geomagnetic field has gone up in lockstep with the percentage of oxygen in Earth's ...

A recent report out of Oregon State University paints a picture of how ocean oxygen levels have decreased in the Pacific Northwest over the years. The report found near-bottom levels of dissolved ...

Fig.1: Tempo and mode in the body size evolution of Cambrian-Ordovician trilobites. Changes in maximum size (red) and mean size (blue) for each time slice, with lines and shading representing the mean ...

The severity of COVID-19 pneumonia can be difficult to assess in people from different ethnic groups, due to inaccurate readings from a device that measures the level of oxygen in the blood of ...

The team discovered that the Earth's oxygen levels will eventually collapse to a fraction of what it is today as the sun grows brighter over time. According to their simulations, the oxygenated phase ...

Stuart Marshall is a councillor (non-executive director) for the Australian and New Zealand College of Anaesthetists (ANZCA) David A. Story is a councillor (non-executive director) for the Australian ...