A new study should add weight to the growing call to increase the cost of smoking.
Blood tests reveal that more than half of non-smoking New Yorkers have elevated levels of cotinine in their blood – meaning that they were recently exposed to toxic second-hand smoke in concentrations high enough to leave residues in the [...]

Exposure to second-hand smoke could increase the risk of developing dementia and other forms of cognitive impairment, according to research published on British Medical Journal online.
A possible link between active smoking and cognitive impairment has already been established and previous findings also suggest that second-hand smoke exposure could be linked to poor cognitive performance in [...]