cigarette gas mask Smoking Bunch Of Cigarettes, Anti Smoking Campaign. Stock Photo, Picture and Royalty Free Image. Image 92478444 Woman in a Gas Mask

Their breathing may become abnormally fast and shallow, they could become dizzy or light-headed, tremble, sweat, feel nauseous, or think theyre having a heart attack

Mad Men continues on Sunday nights on BBC4, 10pm and is repeated on BBC2 on Tuesday evenings, 11.20pm

Chip Somodevilla/Getty Images Clinton speaks to Chinese President Xi Jinping during a meeting in Beijing in November 2013

Model-based estimates show that smoking prevalence in 1997 was highest in WA (31.0%, 95% CI: 26.536.0%) and BR (31.1%, 95% CI: 26.336.4%), and slightly lower in FL (28.5%, 95% CI: 24.0-33.6%)

The evidence is sufficient to conclude that the increased risk of adenocarcinoma of the lung in smokers results from changes in the design and composition of cigarettes since the 1950s, the 2014 surgeon generals report The Health Consequences of Smoking50 Years of Progress concluded