As Sean O'Kane notes at The Verge, these classifications are based solely on the substances themselves, and do not take into account the environmental risk factors associated with some of them
The various flavours are also an issue: Many compounds not listed on labels have been identified in e-liquids, some of which turn into known toxicants when heated and aerosolized
Eliminating smells is only half the battle
Obviously, colonoscopy is still the gold standard for screening, but for anybody who has barriers around that, what they found is that adherence to a colonoscopy recommendation is not that great
While the idea of quitting smoking may sound simple, many people describe it as a deeply personal battle involving fear, motivation, and persistence