The harm done to the body by the chemicals inside cigarettes is the subject of a new health campaign.
A new stop-smoking campaign has been launched by Public Health England to highlight the damage done to smokers' bodies.
The Smokefree Health Harms campaign points out that inhaling dangerous chemicals in cigarettes, including arsenic and cyanide, damages major organs and increases the risk of stroke and dementia.
The chemicals move through the heart, the lungs and into the bloodstream, finally damaging cells in the brain.
England's chief medical officer, Professor Dame Sally Davies, said: "We know about the serious effect smoking has on the heart and lungs but smokers need to be aware of how much potential damage is being done to the brain and other vital organs through toxins in cigarettes entering the blood.
Source: Belfast Telegraph, 29/12/2013