They may have quit recently or a few years back
The tobacco itself is typically made from a blend of different tobacco leaves that have been cured before manufacturing
Over time, poor sleep becomes the bridge between nicotine use and declining mental well-being
Your body becomes addicted to nicotine after prolonged use of tobacco causes your body to compensate for these increases in adrenaline, dopamine, serotonin, norepinephrine, and other neurotransmitters and hormones
Finally, the cross-sectional study design precludes causal inference
But new regulations threaten to kill the momentum by taking away some of the convenience: Vaping is now prohibited everywhere smoking with fire is, including bars, your cubicle, and city parks