The Central Institute of Mental Health (CIMH) in Mannheim conducted a large-scale study that further confirmed a direct link between cigarette consumption and the risk of developing depression.
The paper, published in the journal BMC Public Health, represents one of the most extensive scientific studies in German history, with researchers analyzing data from 173,890 individuals.
Study Results
The study revealed that depression is significantly more prevalent among current and former smokers than among those who have never smoked. While observing this process, scientists identified several key patterns.
One of the primary findings is that the number of cigarettes smoked directly determines the severity of depressive symptoms. Age also plays a significant role. The negative correlation between smoking and mental health was most pronounced in the middle-aged group, specifically between 40 and 59 years old.
The research showed that the age at which tobacco use begins directly influences the onset of depression. The earlier an individual starts smoking, the sooner they experience their first depressive episode.
Quitting Smoking Reduces the Risk of Depression
Scientists emphasized that quitting tobacco has a genuine positive effect on mental health. According to the data, the more time that passes since the last cigarette, the lower the risk of recurrent depression becomes.
Although the study does not yet prove a direct cause-and-effect relationship, researchers plan to use genetic and imaging data in the future to precisely determine the mechanisms underlying this dependency.
