Smoking And Depression

Most of us are familiar with the physical health effects of smoking, but can the habit also affect our mental and emotional well-being? A new study suggests that it can, after finding a link between smoking cigarettes and depression.


Prof. Hagai Levine — from the Hebrew University-Hadassah Braun School of Public Health and Community Medicine in Jerusalem, Israel — is the senior and corresponding author of the study paper.
In it, Prof. Levine and colleagues explain that there are clues in existing research that point to smoking as a predisposing factor to depression.
For instance, depression tends to be twice as likely among people who smoke than those who do not, but it is not yet clear which causes which. Some researchers, however, believe that smoking may lead to depression, not vice versa.
What is more, other studies have found that people who had never smoked generally have a better health-related quality of life (HRQoL), as well as less anxiety and depression.
Most of us are familiar with the physical health effects of smoking, but can the habit also affect our mental and emotional well-being? A new study suggests that it can, after finding a link between smoking cigarettes and depression.
The new study now appears in the journal PLOS ONE.
Prof. Hagai Levine — from the Hebrew University-Hadassah Braun School of Public Health and Community Medicine in Jerusalem, Israel — is the senior and corresponding author of the study paper.
In it, Prof. Levine and colleagues explain that there are clues in existing research that point to smoking as a predisposing factor to depression.
For instance, depression tends to be twice as likely among people who smoke than those who do not, but it is not yet clear which causes which. Some researchers, however, believe that smoking may lead to depression, not vice versa.
What is more, other studies have found that people who had never smoked generally have a better health-related quality of life (HRQoL), as well as less anxiety and depression.
So, to help shed some light on the matter, Prof. Levine and team decided to study the association between HRQoL and smoking among students in Serbia. Few studies have looked into this association in low- and middle-income countries.
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However, more than 25% of people living in Serbia and other Eastern European countries smoke, which is another reason that studying this subject in this population is of interest. Furthermore, about a third of students in Serbia smoke.

Studying smoking and mental health

The new study included data from two cross-sectional studies that gathered information from two universities: the University of Belgrade and the University of Pristina. The former has around 90,000 students, and the latter has around 8,000.

Of this total, the researchers enrolled 2,138 students in their study. The students took part in regular health checkups between April and June 2009 at the University of Belgrade, and between April and June 2015 at the University of Pristina.
The participants provided information about their social and economic backgrounds — such as their age, social status, place of birth, and parents' education — as well as information on any preexisting chronic conditions. They also provided information about their habits and lifestyle, such as smoking status, alcohol use, exercise levels, and eating habits.
The researchers classed people who smoked at least one cigarette per day or 100 cigarettes in a lifetime as "smokers" for the purposes of this study.
To assess the students' HRQoL, Prof. Levine and colleagues asked them to fill in a questionnaire comprising 36 questions across eight dimensions of health. These were:
  • physical functioning
  • role functioning physical
  • bodily pain
  • general health
  • vitality
  • social functioning
  • role functioning emotional
  • mental health
For each of these parameters, a score between 0 and 100 reflected how the interviewee perceived their own mental and physical health.
The team also used the Beck Depression Inventory (BDI) to assess the students' depressive symptoms. The BDI has 21 items, each with a score from 0 to 3.
According to the BDI, a final score of:
  • 0–13 represents "no or minimal depression"
  • 4–19 ranks as "mild depression"
  • 20–28 represents "moderate depression"
  • 29–63 ranks as "severe depression"

Tobacco negatively impacted mental health

Overall, the study found that having a higher BDI score was associated with smoking. Furthermore, the students who smoked were two to three times more likely to have clinical depression than those who had never smoked.
At the University of Pristina, 14% of those who smoked had depression, whereas only 4% of their non-smoking peers had the condition. Among those who smoked at the University of Belgrade, 19% had depression, compared with 11% of those who did not smoke.
Those who smoked also consistently had more depressive symptoms and poorer mental health, as reflected in the "vitality" and "social functioning" parameters.
"These findings highlight the need for further research on the interaction between smoking, mental health, and quality of life, with implications for prevention, diagnosis, and treatment," conclude the study authors.
Prof. Levine adds, "Our study adds to the growing body of evidence that smoking and depression are closely linked."
"While it may be too early to say that smoking causes depression, tobacco does appear to have an adverse effect on our mental health."
Prof. Hagai Levine
He goes on to warn against the perils of smoking, and he encourages policymakers to help prevent these dangers.
"I urge universities to advocate for their students' health by creating 'Smoke-Free Campuses' that not only ban smoking on campus but tobacco advertising, too."
Sources:

Comments

  1. Smoking and depression are closely linked, as smoking can often be a coping mechanism for those dealing with depression. However, it's essential to recognize that smoking can exacerbate mental health issues. If you or someone you know is struggling with both smoking and depression, seeking support and exploring healthier coping strategies is crucial. For information on maintaining overall well-being, including oral health, visit zcaredental.com.

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