As older adults may consume tobacco in a different form than younger adults who may prefer e-cigarettes 32,33 , this may limit the generalizability of the findings to the groups represented in this study
Smoking deteriorates the well-being of smokers in several ways: It diminishes their ability to taste and smell, which in turn affects their appetite and food choice
Tar stains are caused by the dark, adhesive resinous byproduct of burning tobacco, tar coats the outer surface of the enamel and concentrates at the gumline and between teeth, producing the dark brown to black discoloration characteristic of heavy smokers
We evaluated formats for presenting chemical quantities side-by-side to see if any were misleading
Its eyes, nose, and mouth are at first nonexistent, and as it protrudes to its furthest point only its mouth opens, facing resistance as it disconnects its lips, forcing the skin to tear over the orifice