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Researchers can use the estimated mean risk function or BPRF to obtain the risk of an outcome at a given smoking exposure level, as well as uncertainty surrounding that estimate of risk

This damage stops them from expanding and contracting normally, trapping old air in the lungs and making it harder for fresh air to enter

6 / 13 One reason people smoke is that the nicotine helps them relax

Other factors, including certain viral infections or poor oral hygiene, also carry a heightened oral cancer risk

Salazar et al., Elevated Toxic Element Emissions from Popular Disposable E-Cigarettes: Sources, Life Cycle, and Health Risks, ACS Central Science 11, no