Researchers believe ex-smokers not only relapse because of the physical cravings of cigarettes, but also psychological ones.
Calcification was found in the hippocampus, a small organ which plays a key role in our brain's ability to store memories.
The study sheds light on the little-understood chemicals left behind years after a cigarette has been put out.
Researchers believe the finding highlights the importance of prevention over smoking cessation programs.
Prolonged standing could lead to cardiovascular and other health risks, study researchers found.
Tobacco residual exposure from clothes and furniture could potentially lead to brain and liver damage.
A new study suggests people who pick a specific date to toss the cigarettes are more likely to completely kick the habit.
Vaping could be a gateway drug for young people.