Breathing is a crucial biological function essential for survival and various bodily processes. It occurs involuntarily, ...

If someone’s blood oxygen level falls below 60 mm Hg, there may not be enough oxygen reaching the body’s vital organs. This can lead to symptoms such as shortness of breath and dizziness. This article ...

To investigate how melanin affects the accuracy of near-infrared spectroscopy (NIRS) measurements, researchers correlated the melanin levels of 35 adults with a diverse range of skin tones, measured ...

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 ...