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Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not...
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Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
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Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
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Updated: Apr 30, 2026

A Conflict Model of Reward-seeking Behavior in Male Rats
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Sex differences in addictive disorders.

Liana Fattore1, Miriam Melis2, Paola Fadda3

  • 1Institute of Neuroscience - Cagliari National Research Council of Italy, Cittadella Universitaria di Monserrato, Italy; Centre of Excellence "Neurobiology of Dependence", University of Cagliari, Monserrato, Italy.

Frontiers in Neuroendocrinology
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PubMed
Summary
This summary is machine-generated.

Men and women exhibit distinct patterns in addiction vulnerability, not just for drugs but also for behaviors like gambling and food. Understanding these gender differences is key to developing effective, tailored addiction treatments.

Keywords:
Compulsive buyingCompulsive sexDrug addictionExcessive exerciseFood addictionGender differencesInternet addictionPathological gamblingRewardSex hormones

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Behavioral Science

Background:

  • Gender disparities in drug addiction initiation and misuse are well-documented.
  • Differences in susceptibility to addiction extend beyond substances to include rewarding stimuli and activities.

Purpose of the Study:

  • To review existing evidence on gender differences in various addictive behaviors.
  • To examine potential risk factors and neurobiological mechanisms underlying these differences.
  • To highlight the role of sex hormones in modulating addictive behaviors.

Main Methods:

  • Comprehensive literature review of studies on gender differences in addiction.
  • Analysis of research covering drug addiction, food addiction, compulsive sexual behavior, gambling, internet use, and exercise addiction.
  • Examination of neurobiological underpinnings and hormonal influences.

Main Results:

  • Significant gender-dependent variations exist across multiple forms of addiction, including substance and non-substance-related behaviors.
  • Sex hormones play a crucial role in modulating the propensity for addictive behaviors in both males and females.
  • Underlying brain mechanisms and risk factors contributing to these gender differences are identified.

Conclusions:

  • Recognizing gender-specific patterns in addiction is essential for understanding its etiology.
  • Developing gender-tailored therapeutic strategies is critical for effective treatment of both substance and non-substance addictions.