what is more harmful alcohol or cigarettes Which worse — smoking drinking? GW Lifestyle Medicine: Avoidance of
Description
A study found that even one cigarette after quitting increases heart stress and oxidative damage

Smoking worsens blood sugar control and increases the risk of serious complications
10.3389/fpsyt.2016.00104 [DOI] [PMC free article] [PubMed] [Google Scholar] Hu MC, Muthn B, Schaffran C, Griesler PC, & Kandel DB (2008)

As I walked back to the dorm, my mind completely occupied by the image of that shiny red pack of twenty in my jacket pocket, I felt that I had stepped into the abyss