is smoking tobacco Health Effects of on Your Body Chemicals in Cigarettes and Tobacco:
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Editor information Editors and Affiliations Rights and permissions Copyright information 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG About this chapter Cite this chapter Barnett, R., Peng, S

Smoking also causes more swelling in the upper airways, which can make snoring worse and increase the likelihood (or severity of) sleep apnea

The SRNT Biochemical Verification workgroup also recommends biochemical verification when feasible

Medline:26335312 doi:10.1007/s10865-015-9669-7 43
Direct nicotine injection into the bloodstream of animals increases dopamine levels by 25% to 40%
