Save your pearly whites: vape chemicals can discolour teeth. ‘Sticky residue left on teeth from vaping aerosol can trap stains in the enamel, making discolouration more likely,’ says Heffernan ...

At the same time, regulators fear that the very products that help smokers quit — such as vapes or oral nicotine pouches — also attract young people. In response, the F.D.A. has imposed strict ...