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Read Article Now Book Mark Article Pulse oximetry, a painless test that helps determine the amount of oxygen in your blood by using a device placed on the end of your finger Pulse oximeter A pulse oximeter is a small device that measures your blood oxygen level

a simple calculation shows that is an additional life expectancy lost of 5.25 minutes (one millionth of ten years)

The harmful effects of smoking can cause significant damage to these blood vessels and lead to their degeneration

10.1038/s42003-019-0694-x 4 AkhtarW

Genotype predicts how heavily a smoker will smoke, and can affect it up to the level of a couple of cigarettes extra per day