Araştırma Makalesi

The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students

Cilt: 23 Sayı: 1 3 Mart 2026
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The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students

Öz

Background: This study aims to examine the correlation between the finger ratio (the ratio of the lengths of the 2nd and 4th fingers,2D:4D), believed to reflect prenatal testosterone levels, and smoking and social media addiction among medical students. The study also aimed to investigate the relationship between these factors and emotional intelligence.

Materials and Methods: The study comprised 70 non-smokers and 70 smokers, totalling 140 male students. The lengths of the second and fourth fingers of the students were measured. All participants were administered the Fagerstrom Test for Nicotine Dependence (FTND), the Social Media Addiction Scale-Adult Form (SMAS-AF), and the Schutte Emotional Intelligence Scale (SEIS).

Results: SMAS-AF is significantly weak positively correlated with R2D:4D (right 2nd and 4th fingers) (rho[140]) =0.266, p<0.001), L2D:4D (left 2nd and 4th fingers), (rho[140]) =0.187, p=0.027) and SEIS (rho[140]) =0.202, p=0.017). SEIS also shows a significant weak positive correlation with R2D:4D (rho[140]) =0.238, p=0.005). Only in the smoking group, the level of dependence was assessed with FTND and there was no correlation with R2D:4D, L2D:4D, Dr-I and other scale scores.

Conclusions: Our findings show that there is a significant relationship between 2D:4D finger ratio, social media addiction and emotional intelligence among male medical students. These results support the hypothesis that early hormonal influences may contribute to individual differences in both cognitive-emotional processing and susceptibility to behavioural addictions.

Anahtar Kelimeler

Etik Beyan

Ethical approval was obtained from the Kütahya University of Health Sciences Non-Interventional Ethics Committee prior to the study (approval no: 2024/06, date: May 5, 2024).

Kaynakça

  1. 1. Manning JT, Fink B. Digit ratio (2D:4D) and its relationship to foetal and maternal sex steroids: A mini-review. Early Hum Dev. 2023;183:105799.
  2. 2. Manning JT, Churchill AJ, Peters M. The effects of sex, ethnicity, and sexual orientation on self-measured digit ratio (2D:4D). Arch Sex Behav. 2007;36(2):223-33.
  3. 3. Akdeniz G. Evaluation of relationship between digit ratio (2D: 4D) and epilepsy: Can 2D:4D be a clue for epileptogenesis?. J Clin Exp Invest. Haziran 2018;9(2):87-90.
  4. 4. Kaya O, Gonder N, Demir DA, Demir IH, Akay O. Patients with developmental dysplasia of the hip shows higher digit ratio (2D:4D). Early Hum Dev. 2023;185:105857.
  5. 5. Özdemir Ç, Durmaz A. Association of second and fourth digit (2D:4D) ratios with metabolic syndrome and cardiovascular disease risk. Early Hum Dev. 2024;195:106078.
  6. 6. Fonseca CAD, Martelli DRB, Maia CMF, Dias VO, Carvalho AA, Júnior HM. Digital biomarker 2D:4D as a predictor of cancer: A systematic review. Early Hum Dev. 2022;164:105521.
  7. 7. Akkuş M, Avşar PA. 2D:4D ratio, alexithymia, impulsivity, aggression, and ADHD in men with opioid and methamphetamine use disorders: A comparative analysis with healthy controls. Early Hum Dev. 2024;189:105946.
  8. 8. Benowitz NL. Nicotine addiction. N Engl J Med. 2010;362(24):2295-303.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Tıbbi Fizyoloji (Diğer)

Bölüm

Araştırma Makalesi

Erken Görünüm Tarihi

3 Mart 2026

Yayımlanma Tarihi

3 Mart 2026

Gönderilme Tarihi

26 Haziran 2025

Kabul Tarihi

20 Kasım 2025

Yayımlandığı Sayı

Yıl 2026 Cilt: 23 Sayı: 1

Kaynak Göster

APA
Solak, H., Solak Görmüş, Z. I., Özen Koca, R., Özdemir, Ç., & Akkuş, M. (2026). The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students. Harran Üniversitesi Tıp Fakültesi Dergisi, 23(1), 1-7. https://izlik.org/JA37UU54GL
AMA
1.Solak H, Solak Görmüş ZI, Özen Koca R, Özdemir Ç, Akkuş M. The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students. Harran Üniversitesi Tıp Fakültesi Dergisi. 2026;23(1):1-7. https://izlik.org/JA37UU54GL
Chicago
Solak, Hatice, Z Işık Solak Görmüş, Raviye Özen Koca, Çağla Özdemir, ve Merve Akkuş. 2026. “The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students”. Harran Üniversitesi Tıp Fakültesi Dergisi 23 (1): 1-7. https://izlik.org/JA37UU54GL.
EndNote
Solak H, Solak Görmüş ZI, Özen Koca R, Özdemir Ç, Akkuş M (01 Mart 2026) The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students. Harran Üniversitesi Tıp Fakültesi Dergisi 23 1 1–7.
IEEE
[1]H. Solak, Z. I. Solak Görmüş, R. Özen Koca, Ç. Özdemir, ve M. Akkuş, “The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students”, Harran Üniversitesi Tıp Fakültesi Dergisi, c. 23, sy 1, ss. 1–7, Mar. 2026, [çevrimiçi]. Erişim adresi: https://izlik.org/JA37UU54GL
ISNAD
Solak, Hatice - Solak Görmüş, Z Işık - Özen Koca, Raviye - Özdemir, Çağla - Akkuş, Merve. “The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students”. Harran Üniversitesi Tıp Fakültesi Dergisi 23/1 (01 Mart 2026): 1-7. https://izlik.org/JA37UU54GL.
JAMA
1.Solak H, Solak Görmüş ZI, Özen Koca R, Özdemir Ç, Akkuş M. The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students. Harran Üniversitesi Tıp Fakültesi Dergisi. 2026;23:1–7.
MLA
Solak, Hatice, vd. “The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students”. Harran Üniversitesi Tıp Fakültesi Dergisi, c. 23, sy 1, Mart 2026, ss. 1-7, https://izlik.org/JA37UU54GL.
Vancouver
1.Hatice Solak, Z Işık Solak Görmüş, Raviye Özen Koca, Çağla Özdemir, Merve Akkuş. The Relationship Between (2D:4D) Finger Ratios and Smoking, Social Media Addiction and Emotional Intelligence in Medical Students. Harran Üniversitesi Tıp Fakültesi Dergisi [Internet]. 01 Mart 2026;23(1):1-7. Erişim adresi: https://izlik.org/JA37UU54GL

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