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Aghamolaei T, Tavafian Ss, Hassani L,
Volume 4, Issue 3 (3-2009)
Abstract

Background & Objectives: The objective of this study was to determine self efficacy, perceived benefit/ barriers to exercise of students in Hormozagan University of Medical sciences (HUMS).
Methods: This was a cross-sectional study. Using stratified sampling, 350 current students of HUMS were studied from November to December 2007 in Bandar Abbass, Iran. Data regarding self efficacy, perceived benefits/barriers to exercise among participants were assessed through Exercise self efficacy scale and Exercise Benefits/Barriers Scale. Data were analyzed by SPPS version 13.
Results: In all, the data of 249 participants with mean age of 21.7 ± 2.7 were analyzed. Among them 65 participants (26.5%) including 36 girls and 30 boys were doing physical activity. Mean scores of self efficacy, perceived benefits, perceived barriers were 23 ± 7.1, 96 ± 12.5 and 31.9 ± 6.1, respectively. There were statistically significant relationship between self efficacy and perceived barriers with physical activity (P<0.05).
Conclusions: This study revealed perceived barriers such as insufficient time, money and also tiredness due of exercise could decrease physical activity. However perceived self-efficacy and encouraging by friends and family members have a key role of doing regular physical activities.
Ali-Asghar Honarmand, Seyed Aria Nejadghaderi, Aliakbar Haghdoost,
Volume 20, Issue 4 (3-2025)
Abstract

Background and Objectives: Electronic cigarettes are devices that heat liquids containing nicotine and chemicals to produce aerosols that can be inhaled. Although these products have been marketed as a less harmful alternative to traditional cigarettes, there is evidence indicating that their use also carries specific risks. Advertising and the influence of social media, particularly among young individuals, have led to increased consumption of these cigarettes and serious concerns. This study aimed to examine the benefits and drawbacks of electronic cigarettes.
Methods: In this narrative review, PubMed and Google Scholar databases were searched in a non-systematic manner using relevant keywords to identify studies related to the health effects, history, evolution, and cost-effectiveness of electronic cigarettes.
Results: Electronic cigarettes entered the market for the first time in 2003 and quickly gained popularity among consumers. These cigarettes were marketed as a healthier alternative to traditional cigarettes; however, they contain various chemicals, some of which decompose when heated, producing toxic compounds. Electronic cigarettes can have multiple impacts on health, including cardiovascular issues, respiratory problems, and the potential risk of cancer.
Conclusion: Electronic cigarettes may assist in smoking cessation in some cases, but significant drawbacks accompany these benefits. Given the potential risks, there is a need for further research to comprehensively assess their effects on health for a more informed understanding of the advantages and disadvantages of these products.


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