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Stimulants01:29

Stimulants

Stimulants are substances that enhance neural activity and elevate dopamine levels in the brain, leading to their highly addictive nature. These drugs include cocaine, amphetamines, MDMA, caffeine, and nicotine, each with distinct mechanisms of action and varied health implications.
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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 necessarily...
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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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Related Experiment Video

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A Novel Procedure for Evaluating the Reinforcing Properties of Tastants in Laboratory Rats: Operant Intraoral Self-administration
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A Novel Procedure for Evaluating the Reinforcing Properties of Tastants in Laboratory Rats: Operant Intraoral Self-administration

Published on: February 6, 2014

Is fast food addictive?

Andrea K Garber1, Robert H Lustig

  • 1Division of Adolescent Medicine, University of California San Francisco, San Francisco, CA 94143, USA. garbera@peds.ucsf.edu

Current Drug Abuse Reviews
|October 18, 2011
PubMed
Summary

Fast food may be addictive due to its nutrient content, consumer characteristics, and environmental cues. Vulnerable populations, particularly those with obesity, may be most susceptible to developing fast food dependence.

Area of Science:

  • Nutritional Science
  • Psychiatry
  • Behavioral Science

Background:

  • Food addiction research has primarily focused on highly palatable foods.
  • Fast food possesses attributes beyond palatability that may contribute to its addictive potential.

Purpose of the Study:

  • To review evidence on whether fast food's nutrients, consumer characteristics, or presentation encourage substance dependence.
  • To explore the role of fast food in addictive overeating, especially in vulnerable populations.

Main Methods:

  • Literature review examining studies on fast food composition, consumer demographics, and environmental triggers.
  • Analysis of research on sugar, caffeine, fat, and salt content in relation to addictive properties.
  • Consideration of obesity, hormonal resistance, and neuroimaging findings in relation to reward pathways.

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Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats

Published on: August 24, 2016

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Last Updated: May 28, 2026

A Novel Procedure for Evaluating the Reinforcing Properties of Tastants in Laboratory Rats: Operant Intraoral Self-administration
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Published on: February 6, 2014

Intermittent Binge-Intake Model in Mice
05:15

Intermittent Binge-Intake Model in Mice

Published on: January 10, 2025

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats
08:07

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats

Published on: August 24, 2016

Main Results:

  • High sugar content (from sodas) and caffeine in fast food meals may contribute to addictive potential.
  • Fast food consumption is linked to obesity, insulin/leptin resistance, and altered reward system functioning.
  • Environmental cues like advertising and menus can trigger addictive overeating in susceptible individuals.

Conclusions:

  • While fast food addiction is not definitively proven, evidence suggests it can act as a potentially addictive substance.
  • Vulnerable populations, including obese individuals and those experiencing stress or dieting, are at higher risk for developing fast food dependence.