{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T05:43:18Z","timestamp":1772516598670,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2020,6,15]],"date-time":"2020-06-15T00:00:00Z","timestamp":1592179200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Purpose: The use of the internet is a tool and media literacy has become an essential skill among adolescents. Related to this behavior, some adolescents evoke cardiovascular effects. The purpose of this study was to explore a possible correlation between internet use behavior and occurrence of palpitations and related symptoms among a representative cohort of adolescents from the north-west region of Romania. Method: The study included students of seven middle schools from Northwest Romania. Participants completed an anonymous questionnaire consisting of 18 questions about internet use. Results: In total, 1147 students responded to the study. Mean duration of daily internet usage was 2.57 h during school time and 3.57 h during the holidays. A total of 77% of adolescents had more than one symptom related to internet use, and 11% of them reported palpitations and related symptoms. We found an independent relation between palpitation and urban background, palpitations and the internet usage time interval 20:00\u201324:00, and palpitations and tobacco smoking. Strong heartbeats were independently associated with the time interval 12:00\u201316:00, tobacco smoking, and energy drink consumption. Conclusion: In our cohort, the most important factors associated with the occurrence of palpitations and related symptoms were the timeframe of internet usage and smoking.<\/jats:p>","DOI":"10.3390\/ijerph17124278","type":"journal-article","created":{"date-parts":[[2020,6,15]],"date-time":"2020-06-15T12:16:57Z","timestamp":1592223417000},"page":"4278","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Association between Internet Use Behavior and Palpitation among Adolescents: A Cross-Sectional Study of Middle School Children from Northwest Romania"],"prefix":"10.3390","volume":"17","author":[{"given":"Cecilia","family":"Lazea","sequence":"first","affiliation":[{"name":"Department Pediatrics I, Emergency Pediatric Hospital, University of Medicine and Pharmacy \u201dIuliu Hatieganu\u201d, 400370 Cluj-Napoca, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4861-551X","authenticated-orcid":false,"given":"Alexandra","family":"Popa","sequence":"additional","affiliation":[{"name":"Department Pediatrics I, Emergency Pediatric Hospital, University of Medicine and Pharmacy \u201dIuliu Hatieganu\u201d, 400370 Cluj-Napoca, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristina","family":"Varga","sequence":"additional","affiliation":[{"name":"Centre Hospitalier Universitaire (CHU), 67299 Strasbourg, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,15]]},"reference":[{"key":"ref_1","first-page":"998","article-title":"Assessment of internet addiction and loneliness in secondary and high school students","volume":"64","author":"Koyuncu","year":"2014","journal-title":"J. Pak. Med. Assoc."},{"key":"ref_2","first-page":"731","article-title":"Internet Addiction and Attention Deficit Hyperactivity Disorder Among Schoolchildren","volume":"17","author":"Weinstein","year":"2015","journal-title":"Isr. Med. Assoc. J. IMAJ"},{"key":"ref_3","unstructured":"Internet World Stats (2020, February 10). European Internet and Population Statistics. Available online: https:\/\/www.internetworldstats.com."},{"key":"ref_4","unstructured":"European Union (2020, February 10). Digital Economy and Society Statistics-Households and Individuals. Available online: https:\/\/ec.europa.eu."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.addbeh.2015.01.008","article-title":"Blunted feedback processing during risk-taking in adolescents with features of problematic Internet use","volume":"45","author":"Yau","year":"2015","journal-title":"Addict. Behav."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Wee, C.-Y., Zhao, Z., Yap, P.-T., Wu, G., Shi, F., Price, T., Du, Y., Xu, J., Zhou, Y., and Shen, D. (2014). Disrupted Brain Functional Network in Internet Addiction Disorder: A Resting-State Functional Magnetic Resonance Imaging Study. PLoS ONE, 9.","DOI":"10.1371\/journal.pone.0107306"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"S34","DOI":"10.1016\/j.jadohealth.2018.12.016","article-title":"Adolescent Internet Addiction in Hong Kong: Prevalence, Psychosocial Correlates, and Prevention","volume":"64","author":"Chung","year":"2019","journal-title":"J. Adolesc. Health"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"755","DOI":"10.1089\/cyber.2014.0317","article-title":"Internet Addiction Prevalence and Quality of (Real) Life: A Meta-Analysis of 31 Nations Across Seven World Regions","volume":"17","author":"Cheng","year":"2014","journal-title":"Cyberpsychol. Behav. Soc. Netw."},{"key":"ref_9","first-page":"51","article-title":"Psychological risk factors of the youth with Internet addiction","volume":"17","author":"Tang","year":"2009","journal-title":"Chin. J. Clin. Psychol."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Victorin, \u00c5., Johnels, J.\u00c5., Bob, E., Kantzer, A., Gillberg, C., and Fernell, E. (2020). Significant gender differences according to the Problematic and Risky Internet Use Screening Scale among 15-year-olds in Sweden. Acta Paediatr.","DOI":"10.1111\/apa.15240"},{"key":"ref_11","first-page":"1","article-title":"Alterations in Amygdala Connectivity in Internet Addiction Disorder","volume":"10","author":"Cheng","year":"2020","journal-title":"Sci. Rep."},{"key":"ref_12","first-page":"229","article-title":"Relationship between internet addiction and academic performance of undergraduate medical students of Azad Kashmir","volume":"36","author":"Javaeed","year":"2020","journal-title":"Pak. J. Med Sci."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1093","DOI":"10.1007\/s00787-014-0562-7","article-title":"Pathological Internet use among European adolescents: Psychopathology and self-destructive behaviours","volume":"23","author":"Kaess","year":"2014","journal-title":"Eur. Child Adolesc. Psychiatry"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"249","DOI":"10.1007\/s00038-014-0635-x","article-title":"Excessive internet use in European adolescents: What determines differences in severity?","volume":"60","author":"Blinka","year":"2014","journal-title":"Int. J. Public Health"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1016\/j.jadohealth.2013.11.010","article-title":"Online Social Networking in Adolescence: Patterns of Use in Six European Countries and Links With Psychosocial Functioning","volume":"55","author":"Tsitsika","year":"2014","journal-title":"J. Adolesc. Health"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1007\/s00038-015-0649-z","article-title":"The impact of digital media on health: Children\u2019s perspectives","volume":"60","author":"Smahel","year":"2015","journal-title":"Int. J. Public Health"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"619","DOI":"10.1007\/s00038-014-0561-y","article-title":"Computer use, sleep duration and health symptoms: A cross-sectional study of 15-year olds in three countries","volume":"59","author":"Nuutinen","year":"2014","journal-title":"Int. J. Public Health"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1007\/s40519-015-0197-9","article-title":"The association between internet addiction and disordered eating attitudes among Turkish high school students","volume":"20","author":"Alpaslan","year":"2015","journal-title":"Eat. Weight Disord. Stud. Anorexia Bulim. Obes."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1941","DOI":"10.1017\/S0007114515003566","article-title":"Associations between the use of social networking sites and unhealthy eating behaviours and excess body weight in adolescents","volume":"114","author":"Chaput","year":"2015","journal-title":"Br. J. Nutr."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1097\/JCN.0b013e3182a477d5","article-title":"Effects of Internet Addiction on Heart Rate Variability in School-Aged Children","volume":"29","author":"Lin","year":"2014","journal-title":"J. Cardiovasc. Nurs."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Fu, K.-W., Chan, C.-H., and Ip, P. (2014). Exploring the relationship between cyberbullying and unnatural child death: An ecological study of twenty-four European countries. BMC Pediatr., 14.","DOI":"10.1186\/1471-2431-14-195"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Corazon, S.S., Sidenius, U., Poulsen, D.V., Gramkow, M.C., and Stigsdotter, U. (2019). Psycho-Physiological Stress Recovery in Outdoor Nature-Based Interventions: A Systematic Review of the Past Eight Years of Research. Int. J. Environ. Res. Public Health, 16.","DOI":"10.3390\/ijerph16101711"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"421","DOI":"10.2147\/NSS.S163071","article-title":"Sleeping hours: What is the ideal number and how does age impact this?","volume":"10","author":"Chaput","year":"2018","journal-title":"Nat. Sci. Sleep"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"797","DOI":"10.5665\/SLEEP.1052","article-title":"Time for Bed: Parent-Set Bedtimes Associated with Improved Sleep and Daytime Functioning in Adolescents","volume":"34","author":"Short","year":"2011","journal-title":"Sleep"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Wolniczak, I., C\u00e1ceres-DelAguila, J.A., Palma-Ardiles, G., Arroyo, K.J., Sol\u00eds-Visscher, R., Paredes-Yauri, S., Mego-Aquije, K., and Bernabe-Ortiz, A. (2013). Association between Facebook Dependence and Poor Sleep Quality: A Study in a Sample of Undergraduate Students in Peru. PLoS ONE, 8.","DOI":"10.1371\/journal.pone.0059087"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1016\/j.sleep.2010.03.018","article-title":"Risk factors associated with short sleep duration among Chinese school-aged children","volume":"11","author":"Li","year":"2010","journal-title":"Sleep Med."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Moretta, T., and Buodo, G. (2018). Autonomic stress reactivity and craving in individuals with problematic Internet use. PLoS ONE, 13.","DOI":"10.1371\/journal.pone.0190951"},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Reed, P., Romano, M., Re, F., Roaro, A., Osborne, L.A., Vigan\u00f2, C., and Truzoli, R. (2017). Differential physiological changes following internet exposure in higher and lower problematic internet users. PLoS ONE, 12.","DOI":"10.1371\/journal.pone.0178480"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"334","DOI":"10.1556\/2006.6.2017.041","article-title":"Web addiction in the brain: Cortical oscillations, autonomic activity, and behavioral measures","volume":"6","author":"Balconi","year":"2017","journal-title":"J. Behav. Addict."},{"key":"ref_30","first-page":"101","article-title":"Excessive use of social networks: Psychosocial profile of Spanish adolescents","volume":"26","year":"2018","journal-title":"Comunication"},{"key":"ref_31","first-page":"1","article-title":"Adverse Health Effects and Unhealthy Behaviors among Medical Students Using Facebook","volume":"2013","author":"Ganasegeran","year":"2013","journal-title":"Sci. World J."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"796","DOI":"10.4330\/wjc.v9.i11.796","article-title":"Effects of energy drinks on the cardiovascular system","volume":"9","author":"Wassef","year":"2017","journal-title":"World J. Cardiol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1205","DOI":"10.1016\/j.ajem.2016.02.068","article-title":"Cardiovascular responses to energy drinks in a healthy population: The C-energy study","volume":"34","author":"Kozik","year":"2016","journal-title":"Am. J. Emerg. Med."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"791","DOI":"10.1111\/ijcp.12841","article-title":"Soft drinks and sweetened beverages and the risk of cardiovascular disease and mortality: A systematic reviw and meta-analysis","volume":"70","author":"Narain","year":"2016","journal-title":"Int. J. Clin. Pract."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Haslam, D., McKeown, N.M., Herman, M.A., Lichtenstein, A.H., and Dashti, H.S. (2018). Interactions between Genetics and Sugar-Sweetened Beverage Consumption on Health Outcomes: A Review of Gene\u2013Diet Interaction Studies. Front. Endocrinol., 8.","DOI":"10.3389\/fendo.2017.00368"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Mangi, A.M., Rehman, H., Rafique, M., and Illovsky, M. (2017). Energy Drinks and the Risk of Cardiovascular Disease: A Review of Current Literature. Cureus, 9.","DOI":"10.7759\/cureus.1322"},{"key":"ref_37","unstructured":"United States Department of Health and Human Services (2014). The Health Consequences of Smoking\u201450 Years of Progress: A Report of the Surgeon General."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Makadia, L.D., Roper, P.J., Andrews, J.O., and Tingen, M.S. (2017). Tobacco Use and Smoke Exposure in Children: New Trends, Harm, and Strategies to Improve Health Outcomes. Curr. Allergy Asthma Rep., 17.","DOI":"10.1007\/s11882-017-0723-0"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1097\/MOP.0000000000000456","article-title":"Tobacco, e-cigarettes, and child health","volume":"29","author":"Peterson","year":"2017","journal-title":"Curr. Opin. Pediatr."}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/17\/12\/4278\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:39:12Z","timestamp":1760175552000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/17\/12\/4278"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,6,15]]},"references-count":39,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2020,6]]}},"alternative-id":["ijerph17124278"],"URL":"https:\/\/doi.org\/10.3390\/ijerph17124278","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,6,15]]}}}