New push to make cigarettes smokers in England quit
29 December 2013 Last updated at 07:05 GMT
A new public health campaign in England is highlighting the toxic damage tobacco smoke does to vital organs such as the brain, as well as the lungs.
The TV adverts warn how smoke makes blood "dirty and thick with toxins" which then circulate in the body, increasing the risks of a stroke.
Smokers are twice as likely to die of stroke as non-smokers. They are also at greater risk of developing memory problems and dementia.
Dominic Hughes reports.