Araştırma Makalesi
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Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students

Yıl 2025, Cilt: 15 Sayı: 3, 282 - 287, 05.01.2026

Öz

Aim: Qualitative sleep has multiple effects on human health and even social abilities. However, disruption of sleep or insufficient sleep might have detrimental effects, especially on young people. Insufficient or irregular sleep behaviors have been revealed to have an alleviating effect on academic success. In the present study, it was aimed to examine sleep behaviors associated with academic success, sleep parameters, and diet.
Material and Methods: Medicinal faculty students from Çanakkale Onsekiz Mart University participated in the study (n=215). General sleep behaviors were examined by Google Forms, designed by the authors. Sleep quality was evaluated via the Pittsburgh Sleep Quality Index (PSQI), and the quality of diet was assessed via the Mediterranean Diet Quality Index (KIDMED).
Results: Our results indicated that significant differences were found in Sleep Latency, Sleep Disturbances, and Daytime Dysfunction. According to the Sleep Latency subscale, Term 1 scores were significantly lower than those of Terms 3, 4, and 5 (p<0.05). However, coffee consumption behaviors of Term 2 students were found to be significantly lower compared to Terms 2, 3, and 4 students (p<0.05). Additionally, the coffee consumption of Term 1 students was significantly lower than of Terms 4 and 5 students (p<0.05). The analysis revealed statistically significant negative correlations between the final dissertation scores and sleep latency, KIDMED score, and PSQI scores (p<0.05).
Conclusion: Depending on our results, considering regular sleep behaviors and diet, medical students should be informed about sleep quality-associated neurological disorders throughout further years.

Kaynakça

  • 1. Iqbal J, Qureshi N, Ashraf MA, Rasool SF, Asghar MZ. The effect of emotional intelligence and academic social networking sites on academic performance during the COVID-19 pandemic. Psychol Res Behav Manag. 2021;14:905–920.
  • 2. Xu K, Sun Z. Predicting academic performance associated with physical fitness of primary school students using machine learning methods. Complement Ther Clin Pract. 2023;51:101736.
  • 3. Hayek J, de Vries H, Tueni M, Lahoud N, Winkens B, Schneider F. Increased Adherence to the Mediterranean Diet and Higher Efficacy Beliefs Are Associated with Better Academic Achievement: A Longitudinal Study of High School Adolescents in Lebanon. International Journal of Environmental Research and Public Health 2021, Vol 18, Page 6928. 2021;18(13):6928.
  • 4. Madrid-Valero JJ, Martínez-Selva JM, Ribeiro do Couto B, Sánchez-Romera JF, Ordoñana JR. Age and gender effects on the prevalence of poor sleep quality in the adult population. Gac Sanit. 2017;31(1):18–22.
  • 5. Godos J, Ferri R, Lanza G, et al. Mediterranean Diet and Sleep Features: A Systematic Review of Current Evidence. Nutrients. 2024;16(2):282.
  • 6. Hartmann ME, Prichard JR. Calculating the contribution of sleep problems to undergraduates’ academic success. Sleep Health. 2018;4(5):463–471. 7. Wu XY, Zhuang LH, Li W, et al. The influence of diet quality and dietary behavior on health-related quality of life in the general population of children and adolescents: a systematic review and meta-analysis. Quality of Life Research. 2019;28(8):1989–2015.
  • 8. Asigbee FM, Whitney SD, Peterson CE. The Link Between Nutrition and Physical Activity in Increasing Academic Achievement. Journal of School Health. 2018;88(6):407–415.
  • 9. Li Y, Dai Q, Jackson JC, Zhang J. Overweight Is Associated With Decreased Cognitive Functioning Among School-age Children and Adolescents. Obesity. 2008;16(8):1809–1815.
  • 10. Ickovics JR, Carroll-Scott A, Peters SM, Schwartz M, GilstadHayden K, Mccaslin C. Health and Academic Achievement: Cumulative Effects of Health Assets on Standardized Test Scores Among Urban Youth in the United States. Journal of School Health. 2014;84(1):40–48.
  • 11. Ağargün MY, Kara H, Anlar O. Pittsburgh uyku kalitesi indeksinin geçerliği ve güvenirliği. Türk Psikiyatri Dergisi. 1996;7(2):107–115.
  • 12. Ağar İ, Malakcıoğlu C, Mutlu HH. Uykusuzluk Şikayetleri ve Uyku Kalitesi Temel Ölçeğinin Türkçe Geçerlilik ve Güvenirliği. Turkish Journal of Family Medicine and Primary Care. 2021;15(4):846–852.
  • 13. Akar Şahingöz S, Özgen L, Yalçın E. Akdeniz Diyet Kalitesi Ölçeğinin (Mediterranean Diet Quality-KIDMED) Geçerlik ve Güvenirlik Çalışması; 2019.
  • 14. Sarı-öz S, Hızlı Güldemir H. The Relationship Between BMI, KIDMED Score, and Nutritional Habits of Female Adolescents: A Cross Sectional Study. Clinical and Experimental Health Sciences. 2024;14(2):454–462.
  • 15. Rei M, Severo M, Rodrigues S. Reproducibility and validity of the Mediterranean Diet Quality Index (KIDMED Index) in a sample of Portuguese adolescents. British Journal of Nutrition. 2021;126(11):1737–1748.
  • 16. Kuperczkó D, Perlaki G, Faludi B, et al. Late bedtime is associated with decreased hippocampal volume in young healthy subjects. Sleep Biol Rhythms. 2015;13(1):68–75.
  • 17. Fabbri M, Beracci A, Martoni M, Meneo D, Tonetti L, Natale V. Measuring Subjective Sleep Quality: A Review. International Journal of Environmental Research and Public Health 2021, Vol 18, Page 1082. 2021;18(3):1082.
  • 18. Urrila AS, Artiges E, Massicotte J, et al. Sleep habits, academic performance, and the adolescent brain structure. Scientific Reports. 2017;7(1):1–9.
  • 19. Aribisala BS, Riha RL, Valdes Hernandez M, et al. Sleep and brain morphological changes in the eighth decade of life. Sleep Med. 2020;65:152–158.
  • 20. Brown BM, Rainey-Smith SR, Villemagne VL, et al. The Relationship between Sleep Quality and Brain Amyloid Burden. Sleep. 2016;39(5):1063–1068.
  • 21. Bliznak V, Perlis ML, Ellis J, et al. What is the Ideal Bedtime? Data from a Community Sample. Sleep. 2019;42:A4-A4.
  • 22. Urbanek JK, Spira AP, Di J, Leroux A, Crainiceanu C, Zipunnikov V. Epidemiology of objectively measured bedtime and chronotype in US adolescents and adults: NHANES 2003–2006. Chronobiol Int. 2018;35(3):416–434.
  • 23. Zaidalkilani AT, Alhaj OA, Serag El-Dine MF, et al. Arab Women Adherence to the Mediterranean Diet and Insomnia. Medicina. 2021;58(1):17.
  • 24. Muscogiuri G, Barrea L, Aprano S, et al. Sleep Quality in Obesity: Does Adherence to the Mediterranean Diet Matter? Nutrients. 2020;12(5):1364.
  • 25. Pickersgill JW, Turco C V., Ramdeo K, Rehsi RS, Foglia SD, Nelson AJ. The Combined Influences of Exercise, Diet and Sleep on Neuroplasticity. Front Psychol. 2022;13:831819.
  • 26. Gorini S, Camajani E, Cava E, et al. Gender differences in eating habits and sports preferences across age groups: a cross-sectional study. J Transl Med. 2025;23(1):1–12

Yıl 2025, Cilt: 15 Sayı: 3, 282 - 287, 05.01.2026

Öz

Kaynakça

  • 1. Iqbal J, Qureshi N, Ashraf MA, Rasool SF, Asghar MZ. The effect of emotional intelligence and academic social networking sites on academic performance during the COVID-19 pandemic. Psychol Res Behav Manag. 2021;14:905–920.
  • 2. Xu K, Sun Z. Predicting academic performance associated with physical fitness of primary school students using machine learning methods. Complement Ther Clin Pract. 2023;51:101736.
  • 3. Hayek J, de Vries H, Tueni M, Lahoud N, Winkens B, Schneider F. Increased Adherence to the Mediterranean Diet and Higher Efficacy Beliefs Are Associated with Better Academic Achievement: A Longitudinal Study of High School Adolescents in Lebanon. International Journal of Environmental Research and Public Health 2021, Vol 18, Page 6928. 2021;18(13):6928.
  • 4. Madrid-Valero JJ, Martínez-Selva JM, Ribeiro do Couto B, Sánchez-Romera JF, Ordoñana JR. Age and gender effects on the prevalence of poor sleep quality in the adult population. Gac Sanit. 2017;31(1):18–22.
  • 5. Godos J, Ferri R, Lanza G, et al. Mediterranean Diet and Sleep Features: A Systematic Review of Current Evidence. Nutrients. 2024;16(2):282.
  • 6. Hartmann ME, Prichard JR. Calculating the contribution of sleep problems to undergraduates’ academic success. Sleep Health. 2018;4(5):463–471. 7. Wu XY, Zhuang LH, Li W, et al. The influence of diet quality and dietary behavior on health-related quality of life in the general population of children and adolescents: a systematic review and meta-analysis. Quality of Life Research. 2019;28(8):1989–2015.
  • 8. Asigbee FM, Whitney SD, Peterson CE. The Link Between Nutrition and Physical Activity in Increasing Academic Achievement. Journal of School Health. 2018;88(6):407–415.
  • 9. Li Y, Dai Q, Jackson JC, Zhang J. Overweight Is Associated With Decreased Cognitive Functioning Among School-age Children and Adolescents. Obesity. 2008;16(8):1809–1815.
  • 10. Ickovics JR, Carroll-Scott A, Peters SM, Schwartz M, GilstadHayden K, Mccaslin C. Health and Academic Achievement: Cumulative Effects of Health Assets on Standardized Test Scores Among Urban Youth in the United States. Journal of School Health. 2014;84(1):40–48.
  • 11. Ağargün MY, Kara H, Anlar O. Pittsburgh uyku kalitesi indeksinin geçerliği ve güvenirliği. Türk Psikiyatri Dergisi. 1996;7(2):107–115.
  • 12. Ağar İ, Malakcıoğlu C, Mutlu HH. Uykusuzluk Şikayetleri ve Uyku Kalitesi Temel Ölçeğinin Türkçe Geçerlilik ve Güvenirliği. Turkish Journal of Family Medicine and Primary Care. 2021;15(4):846–852.
  • 13. Akar Şahingöz S, Özgen L, Yalçın E. Akdeniz Diyet Kalitesi Ölçeğinin (Mediterranean Diet Quality-KIDMED) Geçerlik ve Güvenirlik Çalışması; 2019.
  • 14. Sarı-öz S, Hızlı Güldemir H. The Relationship Between BMI, KIDMED Score, and Nutritional Habits of Female Adolescents: A Cross Sectional Study. Clinical and Experimental Health Sciences. 2024;14(2):454–462.
  • 15. Rei M, Severo M, Rodrigues S. Reproducibility and validity of the Mediterranean Diet Quality Index (KIDMED Index) in a sample of Portuguese adolescents. British Journal of Nutrition. 2021;126(11):1737–1748.
  • 16. Kuperczkó D, Perlaki G, Faludi B, et al. Late bedtime is associated with decreased hippocampal volume in young healthy subjects. Sleep Biol Rhythms. 2015;13(1):68–75.
  • 17. Fabbri M, Beracci A, Martoni M, Meneo D, Tonetti L, Natale V. Measuring Subjective Sleep Quality: A Review. International Journal of Environmental Research and Public Health 2021, Vol 18, Page 1082. 2021;18(3):1082.
  • 18. Urrila AS, Artiges E, Massicotte J, et al. Sleep habits, academic performance, and the adolescent brain structure. Scientific Reports. 2017;7(1):1–9.
  • 19. Aribisala BS, Riha RL, Valdes Hernandez M, et al. Sleep and brain morphological changes in the eighth decade of life. Sleep Med. 2020;65:152–158.
  • 20. Brown BM, Rainey-Smith SR, Villemagne VL, et al. The Relationship between Sleep Quality and Brain Amyloid Burden. Sleep. 2016;39(5):1063–1068.
  • 21. Bliznak V, Perlis ML, Ellis J, et al. What is the Ideal Bedtime? Data from a Community Sample. Sleep. 2019;42:A4-A4.
  • 22. Urbanek JK, Spira AP, Di J, Leroux A, Crainiceanu C, Zipunnikov V. Epidemiology of objectively measured bedtime and chronotype in US adolescents and adults: NHANES 2003–2006. Chronobiol Int. 2018;35(3):416–434.
  • 23. Zaidalkilani AT, Alhaj OA, Serag El-Dine MF, et al. Arab Women Adherence to the Mediterranean Diet and Insomnia. Medicina. 2021;58(1):17.
  • 24. Muscogiuri G, Barrea L, Aprano S, et al. Sleep Quality in Obesity: Does Adherence to the Mediterranean Diet Matter? Nutrients. 2020;12(5):1364.
  • 25. Pickersgill JW, Turco C V., Ramdeo K, Rehsi RS, Foglia SD, Nelson AJ. The Combined Influences of Exercise, Diet and Sleep on Neuroplasticity. Front Psychol. 2022;13:831819.
  • 26. Gorini S, Camajani E, Cava E, et al. Gender differences in eating habits and sports preferences across age groups: a cross-sectional study. J Transl Med. 2025;23(1):1–12
Toplam 25 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Klinik Tıp Bilimleri (Diğer)
Bölüm Araştırma Makalesi
Yazarlar

Hüseyin Avni Eroğlu

Damla Aykora

Berna Sert

Cemre Aydeğer

Gönderilme Tarihi 22 Mayıs 2025
Kabul Tarihi 28 Haziran 2025
Yayımlanma Tarihi 5 Ocak 2026
Yayımlandığı Sayı Yıl 2025 Cilt: 15 Sayı: 3

Kaynak Göster

APA Eroğlu, H. A., Aykora, D., Sert, B., Aydeğer, C. (2026). Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students. Kafkas Journal of Medical Sciences, 15(3), 282-287.
AMA Eroğlu HA, Aykora D, Sert B, Aydeğer C. Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students. KAFKAS TIP BİL DERG. Ocak 2026;15(3):282-287.
Chicago Eroğlu, Hüseyin Avni, Damla Aykora, Berna Sert, ve Cemre Aydeğer. “Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students”. Kafkas Journal of Medical Sciences 15, sy. 3 (Ocak 2026): 282-87.
EndNote Eroğlu HA, Aykora D, Sert B, Aydeğer C (01 Ocak 2026) Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students. Kafkas Journal of Medical Sciences 15 3 282–287.
IEEE H. A. Eroğlu, D. Aykora, B. Sert, ve C. Aydeğer, “Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students”, KAFKAS TIP BİL DERG, c. 15, sy. 3, ss. 282–287, 2026.
ISNAD Eroğlu, Hüseyin Avni vd. “Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students”. Kafkas Journal of Medical Sciences 15/3 (Ocak2026), 282-287.
JAMA Eroğlu HA, Aykora D, Sert B, Aydeğer C. Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students. KAFKAS TIP BİL DERG. 2026;15:282–287.
MLA Eroğlu, Hüseyin Avni vd. “Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students”. Kafkas Journal of Medical Sciences, c. 15, sy. 3, 2026, ss. 282-7.
Vancouver Eroğlu HA, Aykora D, Sert B, Aydeğer C. Sleep, Diet, and Academic Success: A Cross-Sectional Study Among Medical Students. KAFKAS TIP BİL DERG. 2026;15(3):282-7.