Darker skin tones are typically the result of the presence of more of the pigment melanin, which can interfere with the absorption of light from the pulse oximeter. In practical terms, this means that ...

A recent study found that smoking an e-cigarette decreased the amount of oxygen being taken in by the lungs, regardless of ...

and showed that using an e-cigarette decreased “venous oxygen saturation,” meaning the user’s lungs are likely taking in less oxygen — regardless of whether the vape contains nicotine.

The ODI is the number of times per hour of sleep that your blood oxygen level drops by a certain degree from baseline. Oxygen saturation is a measure of the oxygen in your blood. Drops in blood oxygen ...