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Related Concept Videos

Depression: Overview01:18

Depression: Overview

Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
Stress Prevention and Stress Management Techniques IV01:26

Stress Prevention and Stress Management Techniques IV

Stress often leads to unhealthy habits like smoking, excessive drinking, and overeating, which offer short-term relief but ultimately increase long-term health risks. These behaviors create a cycle that temporarily lowers stress levels but can result in severe long-term health consequences. Breaking these habits is essential to reduce the risk of chronic diseases and improve overall well-being. Three primary changes that support better health include quitting smoking, reducing alcohol intake,...
Depressive Disorders: MDD and Dysthymia01:27

Depressive Disorders: MDD and Dysthymia

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Long-term Depression01:03

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
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Long-term Depression01:05

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Antidepressant Drugs: MAOIs and Other Agents

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Related Experiment Video

Updated: Jun 6, 2026

A New Method for Inducing a Depression-Like Behavior in Rats
07:57

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

Current major depression among smokers using a state quitline.

Kiandra K Hebert1, Sharon E Cummins, Sandra Hernández

  • 1Moores Cancer Center, University of California San Diego, La Jolla, 92093-0905, USA.

American Journal of Preventive Medicine
|December 15, 2010
PubMed
Summary
This summary is machine-generated.

Nearly 25% of smokers seeking cessation support via quitlines have major depression, significantly impacting their ability to quit smoking successfully. This highlights the need for integrated mental health interventions for smokers. Keywords: smoking cessation, depression, quitlines, mental health.

Related Experiment Videos

Last Updated: Jun 6, 2026

A New Method for Inducing a Depression-Like Behavior in Rats
07:57

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

Area of Science:

  • Public Health
  • Clinical Psychology
  • Addiction Medicine

Background:

  • Smokers seeking smoking cessation treatment are often not screened for depression.
  • Untreated depression in smokers can negatively affect their chances of quitting.
  • Assessing depression is crucial for understanding and improving smoking cessation outcomes.

Purpose of the Study:

  • To systematically evaluate the prevalence of current major depression among smokers contacting a state tobacco quitline.
  • To identify potential correlations between depression and smoking characteristics.
  • To assess the impact of depression on smoking cessation success.

Main Methods:

  • 844 smokers calling the California Smokers' Helpline were screened using the Patient Health Questionnaire (PHQ-9) for depression.
  • The Social Functioning Questionnaire (SFQ) was also administered.
  • Cessation outcomes were assessed at a 2-month follow-up.

Main Results:

  • 24.2% of smokers met criteria for major depression; 16.5% had mild depression symptoms.
  • Major depression was more common in heavy smokers and those on Medicaid.
  • Smokers with major depression were less likely to quit smoking (18.5% vs. 28.4% for non-depressed smokers).
  • 74.0% of depressed smokers reported significant social and occupational functioning deficits.

Conclusions:

  • Nearly one in four smokers accessing quitline services exhibit current major depression.
  • A significant number of smokers using quitlines annually may have depressive symptoms, necessitating tailored interventions.
  • Integrating mental health support into smoking cessation programs is essential for improving quit rates among depressed smokers.