Smoking has been linked with an increased risk of developing dementia later in life.
A recent research project published in the Archives of Internal Medicine revealed that heavy smoking during midlife can increase the risk of diseases including dementia, Alzheimer's and Vascular dementia by more than 100 per cent.
The scientists suggested that these results revealed that the brain is not immune to the long-term consequences of smoking.
Penny Hibberd, director of the Dementia Services Development Centre South East, said that smoking was likely to increase the risk of certain types of dementia more than others.
"There is more evidence to say that it would contribute to vascular dementia because the nature of vascular dementia is it is a type of dementia that affects the [blood] circulation [in] the brain," she explained.
Ms Hibbard added that the problem can be held off by doing "plenty of exercise, activities, stimulation [and] activities like reading and puzzles".
Independent advice on private healthcare