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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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Related Experiment Video

Updated: May 1, 2026

Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies
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Are e-cigarettes a safer alternative to smoking?

Wendy Preston, Stephen Ayre

    Nursing Times
    |March 29, 2014
    PubMed
    Summary

    Smokers are using unregulated electronic cigarettes to quit smoking. This article reviews evidence on e-cigarettes and their clinical implications for smoking cessation services.

    Area of Science:

    • Public Health
    • Clinical Medicine
    • Pharmacology

    Background:

    • Electronic nicotine delivery devices (e-cigarettes) are increasingly used by smokers attempting to quit.
    • The current regulatory status of e-cigarettes raises concerns regarding product safety and efficacy.
    • Existing smoking cessation services need to adapt to the emergence of these novel products.

    Purpose of the Study:

    • To explore the available evidence on electronic nicotine delivery devices (e-cigarettes).
    • To discuss the implications of e-cigarette use for clinical practice.
    • To review secondary care smoking cessation services in accordance with NICE guidance.

    Main Methods:

    • Literature review of current evidence on e-cigarettes.
    • Analysis of clinical practice guidelines.

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  • Discussion of service provision for smoking cessation.

    • Main Results:

    • Evidence regarding the efficacy and safety of e-cigarettes for smoking cessation is still developing.
    • Clinical practice needs to address patient use of e-cigarettes.
    • NICE guidance provides a framework for smoking cessation services.

    Conclusions:

    • Further research is needed to understand the role of e-cigarettes in smoking cessation.
    • Healthcare professionals should be informed about e-cigarettes to guide patients effectively.
    • Smoking cessation services must integrate current evidence and guidelines to support smokers.