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

Yıl 2026, Sayı: Advanced Online Publication, 03.03.2026

Hatice Solak , Z Işık Solak Görmüş , Raviye Özen Koca , Çağla Özdemir , Merve Akkuş

https://izlik.org/JA37UU54GL

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

Second and fourth digit ratio , Nicotine dependence , Emotional Intelligence , Social Media Addiction

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).

Tıp Öğrencilerinde (2D:4D) Parmak Oranları ile Sigara Kullanımı, Sosyal Medya Bağımlılığı ve Duygusal Zeka Arasındaki İlişki

https://izlik.org/JA37UU54GL

Öz

Amaç: Bu çalışma, tıp öğrencileri arasında doğum öncesi testosteron düzeylerini yansıttığına inanılan parmak oranı (2. ve 4. parmak uzunluklarının oranı, 2D:4D) ile sigara ve sosyal medya bağımlılığı arasındaki ilişkiyi incelemeyi amaçlamaktadır. Çalışma ayrıca bu faktörler ile duygusal zekâ arasındaki ilişkiyi araştırmayı da amaçlamıştır.

Materyal ve metod: Çalışmaya 70 sigara içmeyen ve 70 sigara içen olmak üzere toplam 140 erkek öğrenci katılmıştır. Öğrencilerin ikinci ve dördüncü parmak uzunlukları ölçülmüştür. Tüm katılımcılara Fagerstrom Nikotin Bağımlılığı Testi (FTND), Sosyal Medya Bağımlılığı Ölçeği-Yetişkin Formu (SMAS-AF) ve Schutte Duygusal Zeka Ölçeği (SEIS) uygulanmıştır.

Bulgular: SMAS-AF ile R2D:4D (sağ 2. ve 4. parmak uzunluklarının oranı) (rho[140]) =0,266, p<0,001), L2D:4D (sol 2. ve 4. parmak uzunluklarının oranı) (rho[140]) =0,187, p=0,027) ve SEIS (rho[140]) =0,202, p=0,017) arasında zayıf anlamlı pozitif yönlü korelasyon vardır. SEIS de R2D:4D ile zayıf anlamlı pozitif yönlü korelasyon göstermektedir (rho[140]) =0,238, p=0,005). Sadece sigara içen grupta bağımlılık düzeyi FTND ile değerlendirilmiş ve R2D:4D, L2D:4D, Dr-I ve diğer ölçek puanları ile herhangi bir korelasyon bulunmamıştır.

Sonuç: Bulgularımız, erkek tıp öğrencileri arasında 2D:4D parmak oranı, sosyal medya bağımlılığı ve duygusal zeka arasında anlamlı bir ilişki olduğunu göstermektedir. Bu sonuçlar, erken hormonal etkilerin hem bilişsel-duygusal işleme hem de davranışsal bağımlılıklara yatkınlıktaki bireysel farklılıklara katkıda bulunabileceği hipotezini desteklemektedir.

 

Anahtar Kelimeler

İkinci ve dördüncü parmak oranı , Nikotin bağımlılığı , Duygusal Zeka , Sosyal Medya Bağımlılığı

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).

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