[DOI] [PMC free article] [PubMed] [Google Scholar] 50.Ostro B, Feng WY, Broadwin R, Green S, Lipsett M
A case-control study published in Oral Diseases found that smokers were 5.6 times more likely to develop lip pigmentation than non-smokers, with the risk increasing the longer a person smoked.The result is smokers lips that appear darker, duller, and older than they actually are
The key is understanding the difference between methods that work safely versus those that can damage your teeth

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Maddie has a BA in English Literature and Language, which stemmed from her lifelong interest in reading and writing
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