{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T04:24:27Z","timestamp":1778819067090,"version":"3.51.4"},"reference-count":37,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T00:00:00Z","timestamp":1767744000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006303","name":"Associa\u00e7\u00e3o Fundo de Incentivo \u00e0 Pesquisa","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100006303","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior\u2014Brazil","doi-asserted-by":"crossref","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003593","name":"National Council for Scientific and Technological Development","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"crossref"}]},{"name":"FAPESP fellowship","award":["2021\/13990-5"],"award-info":[{"award-number":["2021\/13990-5"]}]},{"name":"FAPESP fellowship","award":["#2018\/15921-8"],"award-info":[{"award-number":["#2018\/15921-8"]}]},{"name":"CNPq fellowship"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JPM"],"abstract":"<jats:p>The prevalence of binge-eating behavior among individuals with obesity is reported to be higher than in the overall population. Previous studies have suggested that chronotype (more specifically, eveningness) is associated with binge-eating symptoms; however, this association remains unclear among individuals with obesity. Background\/Objectives: To evaluate the association between chronotype and binge-eating symptoms in adults with severe obesity undergoing preoperative evaluation for bariatric surgery. Methods: This cross-sectional study evaluated 100 adults with severe obesity undergoing multidisciplinary preoperative assessment at a bariatric surgery clinic. Binge-eating symptoms were assessed using the Binge-Eating Scale. Chronotype was evaluated using the Morningness\u2013Eveningness Questionnaire. Other sleep parameters were subjectively assessed using the Insomnia Severity Index, the Epworth Sleepiness Scale, the Pittsburgh Sleep Quality Index, the Functional Outcomes of Sleep Questionnaire, and the Berlin questionnaire. Psychological aspects were assessed using the Depression, Stress, and Anxiety Scale (DASS-21). Results: Clinically relevant binge-eating symptoms were identified in 50% of the patients. Regarding chronotype, 16 patients were evening-types, 45 were intermediate types, and 39 were morning-types. The proportion of the clinical sample with moderate or severe binge-eating symptoms was equivalent among the three chronotypes (p = 0.794), with patients with no binge-eating symptoms accounting for around 50% of each group. There was no association between chronotype and the binge-eating score (p = 0.702). Conclusions: Despite the high prevalence of binge-eating symptoms and an overall negative sleep profile (composed of excessively daytime sleepiness, poor sleep quality, and a high risk of sleep apnea), chronotype does not appear to influence binge-eating symptoms in this clinical sample of adults with severe obesity evaluated for bariatric surgery. These findings suggest a limited utility of chronotype assessment for identifying vulnerability to binge-eating symptoms in the preoperative setting.<\/jats:p>","DOI":"10.3390\/jpm16010037","type":"journal-article","created":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T11:46:43Z","timestamp":1767786403000},"page":"37","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Associations Between Binge-Eating Symptoms and Chronotype Among Bariatric Surgery Candidates: Clinical Implications for Preoperative Assessment\u2014A Cross-Sectional Study"],"prefix":"10.3390","volume":"16","author":[{"given":"Giovanna Lira Rosa","family":"Ciutti","sequence":"first","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5534-6138","authenticated-orcid":false,"given":"Andr\u00e9ia Gomes","family":"Bezerra","sequence":"additional","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcos","family":"M\u00f4nico-Neto","sequence":"additional","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7738-0927","authenticated-orcid":false,"given":"Lia Rita","family":"Bittencourt","sequence":"additional","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"},{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o Interdisciplinar em Ci\u00eancias da Sa\u00fade, Universidade Federal de S\u00e3o Paulo, Santos 11015-020, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergio","family":"Tufik","sequence":"additional","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"},{"name":"Instituto do Sono, S\u00e3o Paulo 04024-002, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gabriel Natan","family":"Pires","sequence":"additional","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"},{"name":"Hospital Israelita Albert Einstein, S\u00e3o Paulo 05653-120, Brazil"},{"name":"Faculdade Israelita de Ci\u00eancias da Sa\u00fade Albert Einstein, S\u00e3o Paulo 05653-120, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2710-9693","authenticated-orcid":false,"given":"Jos\u00e9 Carlos Fernandes","family":"Galdur\u00f3z","sequence":"additional","affiliation":[{"name":"Departamento de Psicobiologia, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo 04024-002, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1491","DOI":"10.1007\/s00127-022-02223-z","article-title":"Correlates and impact of DSM-5 binge eating disorder, bulimia nervosa and recurrent binge eating: A representative population survey in a middle-income country","volume":"57","author":"Appolinario","year":"2022","journal-title":"Soc. Psychiatry Psychiatr. Epidemiol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1590\/S1516-44462004000200008","article-title":"Neuropsychology of eating disorders: A systematic review of the literature","volume":"26","author":"Duchesne","year":"2004","journal-title":"Braz. J. Psychiatry"},{"key":"ref_3","first-page":"127","article-title":"Prevalence of Food Addiction and Binge Eating in an Italian sample of bariatric surgery candidates and overweight\/obese patients seeking low-energy-diet therapy","volume":"54","author":"Bianciardi","year":"2019","journal-title":"Riv. Psichiatr."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"e13415","DOI":"10.1111\/jhn.13415","article-title":"Prevalence of Emotional and Binge Eating Among Patients With Obesity Attending a Specialist Weight Management Service for Bariatric Surgery in the United Kingdom","volume":"38","author":"Alhindi","year":"2025","journal-title":"J. Hum. Nutr. Diet."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"e03656","DOI":"10.1590\/s1980-220x2019013903656","article-title":"Anxiety, sleep quality, and binge eating in overweight or obese adults","volume":"54","author":"Fusco","year":"2020","journal-title":"Rev. Esc. Enferm USP"},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"da Luz, F.Q., Mohsin, M., Jana, T.A., Marinho, L.S., dos Santos, E., Lobo, I., Pascoareli, L., Gaeta, T., Ferrari, S., and Teixeira, P.C. (2023). An Examination of the Relationships between Eating-Disorder Symptoms, Difficulties with Emotion Regulation, and Mental Health in People with Binge Eating Disorder. Behav. Sci., 13.","DOI":"10.3390\/bs13030234"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1016\/j.clinthera.2020.10.014","article-title":"The Neurobiology of Binge-eating Disorder Compared with Obesity: Implications for Differential Therapeutics","volume":"43","author":"Boswell","year":"2021","journal-title":"Clin. Ther."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Roenneberg, T., Pilz, L.K., Zerbini, G., and Winnebeck, E.C. (2019). Chronotype and Social Jetlag: A (Self-) Critical Review. Biology, 8.","DOI":"10.20944\/preprints201905.0092.v1"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1177\/0748730402239679","article-title":"Life between clocks: Daily temporal patterns of human chronotypes","volume":"18","author":"Roenneberg","year":"2003","journal-title":"J. Biol. Rhythms."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"77","DOI":"10.1016\/j.copsyc.2019.09.002","article-title":"Chronotype, circadian rhythms and mood","volume":"34","author":"Bauducco","year":"2020","journal-title":"Curr. Opin. Psychol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"616","DOI":"10.1080\/07420528.2021.2016795","article-title":"Snacking behavior differs between evening and morning chronotype individuals but no differences are observed in overall energy intake, diet quality, or food cravings","volume":"39","author":"Yang","year":"2022","journal-title":"Chronobiol. Int."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1192","DOI":"10.1002\/oby.23749","article-title":"Evening types as determined by subjective and objective measures are more emotional eaters","volume":"31","author":"Garaulet","year":"2023","journal-title":"Obesity"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"223","DOI":"10.1080\/07420528.2022.2158846","article-title":"Morning individuals in Saudi Arabia have higher self-regulation of eating behavior compared to evening types","volume":"40","author":"Noorwali","year":"2023","journal-title":"Chronobiol. Int."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"978412","DOI":"10.3389\/fnut.2022.978412","article-title":"A matter of time: A systematic scoping review on a potential role of the circadian system in binge eating behavior","volume":"9","author":"Guerdjikova","year":"2022","journal-title":"Front Nutr."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Plano, S.A., Soneira, S., Tortello, C., and Golombek, D.A. (2022). Is the binge-eating disorder a circadian disorder?. Front. Nutr., 9.","DOI":"10.3389\/fnut.2022.964491"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"53","DOI":"10.14797\/mdcvj.1510","article-title":"Strategies to Manage Obesity: Lifestyle","volume":"21","author":"Saavedra","year":"2025","journal-title":"Methodist DeBakey Cardiovasc. J."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"489","DOI":"10.1016\/j.psychres.2012.07.004","article-title":"Night eating patterns and chronotypes: A correlation with binge eating behaviors","volume":"200","author":"Harb","year":"2012","journal-title":"Psychiatry Res."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/0306-4603(82)90024-7","article-title":"The assessment of binge eating severity among obese persons","volume":"7","author":"Gormally","year":"1982","journal-title":"Addict. Behav."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1590\/S1516-44462001000400008","article-title":"Tradu\u00e7\u00e3o e adapta\u00e7\u00e3o para o portugu\u00eas da Escala de Compuls\u00e3o Alimentar Peri\u00f3dica. (Translation and adaptation into Portuguese of the Binge-Eating Scale","volume":"23","author":"Freitas","year":"2001","journal-title":"Rev. Bras. Psiquiatr. Braz. J. Psychiatry"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Lovibond, S., and Lovibond, P. (1995). Manual for the Depression Anxiety Stress Scales, Psychology Foundation. [2nd ed.].","DOI":"10.1037\/t01004-000"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1016\/0165-1781(89)90047-4","article-title":"The Pittsburgh Sleep Quality Index: A new instrument for psychiatric practice and research","volume":"28","author":"Buysse","year":"1989","journal-title":"Psychiatry Res."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1016\/j.sleep.2010.04.020","article-title":"Validation of the Brazilian Portuguese version of the Pittsburgh Sleep Quality Index","volume":"12","author":"Bertolazi","year":"2011","journal-title":"Sleep Med."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"297","DOI":"10.1016\/S1389-9457(00)00065-4","article-title":"Validation of the Insomnia Severity Index as an outcome measure for insomnia research","volume":"2","author":"Bastien","year":"2001","journal-title":"Sleep Med."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"540","DOI":"10.1093\/sleep\/14.6.540","article-title":"A new method for measuring daytime sleepiness: The Epworth sleepiness scale","volume":"14","author":"Johns","year":"1991","journal-title":"Sleep"},{"key":"ref_25","first-page":"97","article-title":"A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms","volume":"4","author":"Horne","year":"1976","journal-title":"Int. J. Chronobiol."},{"key":"ref_26","first-page":"89","article-title":"A self-assessment questionnaire for the determination of morningness-eveningness types in Brazil","volume":"341B","author":"Marques","year":"1990","journal-title":"Prog. Clin. Biol. Res."},{"key":"ref_27","first-page":"835","article-title":"An instrument to measure functional status outcomes for disorders of excessive sleepiness","volume":"20","author":"Weaver","year":"1997","journal-title":"Sleep"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"485","DOI":"10.7326\/0003-4819-131-7-199910050-00002","article-title":"Using the Berlin Questionnaire to identify patients at risk for the sleep apnea syndrome","volume":"131","author":"Netzer","year":"1999","journal-title":"Ann. Intern. Med."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1017\/S1368980015001068","article-title":"Prevalence of and risk factors for binge eating behaviour in 6930 adults starting a weight loss or maintenance programme","volume":"19","author":"Bertoli","year":"2016","journal-title":"Public Health Nutr."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1186\/s40345-021-00233-5","article-title":"Late chronotype predicts more depressive symptoms in bipolar disorder over a 5 year follow-up period","volume":"9","author":"Vidafar","year":"2021","journal-title":"Int. J. Bipolar Disord."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.schres.2021.07.020","article-title":"Chronotype in individuals with schizophrenia: A meta-analysis","volume":"235","author":"Linke","year":"2021","journal-title":"Schizophr Res."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1007\/s11695-020-05010-4","article-title":"Food Addiction and Binge Eating During One Year Following Sleeve Gastrectomy: Prevalence and Implications for Postoperative Outcomes","volume":"31","author":"Weiss","year":"2021","journal-title":"Obes. Surg."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1017\/S0029665124007511","article-title":"Chronotypical influence on eating behaviour and appetite control","volume":"19","author":"Beaulieu","year":"2024","journal-title":"Proc. Nutr. Soc."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"811771","DOI":"10.3389\/fnins.2022.811771","article-title":"Chronotype, circadian rhythm, and psychiatric disorders: Recent evidence and potential mechanisms","volume":"16","author":"Zou","year":"2022","journal-title":"Front. Neurosci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"103049","DOI":"10.1016\/j.eclinm.2024.103049","article-title":"The impact of weight loss interventions on disordered eating symptoms in people with overweight and obesity: A systematic review & meta-analysis","volume":"80","author":"Tsompanaki","year":"2025","journal-title":"EClinicalMedicine"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"De Amicis, R., Galasso, L., Cavallaro, R., Mambrini, S.P., Castelli, L., Montaruli, A., Roveda, E., Esposito, F., Leone, A., and Foppiani, A. (2023). Sex Differences in the Relationship between Chronotype and Eating Behaviour: A Focus on Binge Eating and Food Addiction. Nutrients, 15.","DOI":"10.3390\/nu15214580"},{"key":"ref_37","first-page":"76","article-title":"Binge eating disorder, impulsivity and bipolar spectrum features in a sample of obese candidates for bariatric surgery","volume":"58","author":"Massa","year":"2023","journal-title":"Riv. Psichiatr."}],"container-title":["Journal of Personalized Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4426\/16\/1\/37\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T05:13:11Z","timestamp":1767935591000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4426\/16\/1\/37"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1,7]]},"references-count":37,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,1]]}},"alternative-id":["jpm16010037"],"URL":"https:\/\/doi.org\/10.3390\/jpm16010037","relation":{},"ISSN":["2075-4426"],"issn-type":[{"value":"2075-4426","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1,7]]}}}