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Researchers say that the increase in nicotine yield has likely made cigarettes more addictive and harder to give up

Discussion We aimed to identify the pathways through which family or peer factors influenced smoking cessation using a nationally representative US sample of adults with mental health problems who smoke

"I think, without a doubt, it hurt my (playing) performance," he told the Toronto Star in 2011

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This years World No Tobacco Day theme, Unmask the Appeal, highlights a growing global concern: Nearly 15 million adolescents aged 13 to 15 worldwide already use e-cigarettes

Deborah Arnott, chief executive of Ash, said: "UK policy is on the right track, with thousands of smokers making the switch to vaping and improving their health and little sign of non-smokers taking up vaping