i haven't smoked a cigarette in 3 weeks If Smoke Once Week, How Long Until I'm Clean? 3 Weeks of No Smoking:

The lowest concentration which elicited a significantly different response compared to the control was identified as the Lowest Observed Effect Concentration (LOEC), whilst the highest concentration which did not cause a significantly different response compared to the control was identified as the No Observed Effect Concentration (NOEC)

A recent study by researchers from the University of Pittsburgh found that even smoking just a few cigarettes per day can cause serious damage to your body's structure and functioning

Maintaining the coil's moisture is difficult, so take your time and add a little liquid to the mouthpiece

[5] Stephen was the father of Stevie Young who in later years took over from Malcolm in AC/DC

How people think about the chemicals in cigarette smoke: a systematic review