Stoptober is a "stop smoking" campaign

Stoptober is an NHS campaign to give free support to people quitting smoking. Stop smoking for 28 days and you’re five times more likely to stay smokefree for good.

Source: Stoptober @ Twitter

Image by Challiyil Eswaramangalath Vipin from Chalakudy, India (cigarette.. like a cigarette in the rain) [CC-BY-SA-2.0], via Wikimedia Commons