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Healthy lifestyle is associated with higher life satisfaction among new university students

A cross-sectional study of 419 new undergraduate students at Tehran University of Medical Sciences found that those with healthy lifestyles had significantly higher odds of good life satisfaction (aOR = 1.91; 95% CI: 1.10, 3.35; p = 0.02). Each one-unit increase in lifestyle score was associated with a 28% increase in the odds of good life satisfaction (aOR = 1.28; 95% CI: 1.05, 1.57; p = 0.02).

Last updated: Jul 14, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score34/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Examining relationship between unhealthy lifestyle and life satisfaction among new students at Tehran University of Medical Sciences.

observational

Eshaghi M, Karimi K, Panahi N, Azizpour Y, Razi F, Gharajeh A, Akbarpour S, Hadavandsiri F · PloS one (2026)

Participants: N/A
Duration: N/A
Intervention: Healthy lifestyle behaviors (balanced diet, physical activity, adequate sleep, no smoking/alcohol) assessed via lifestyle score
Outcome: Life satisfaction (categorized as good or poor using validated Iranian questionnaire)
Effect Size: aOR = 1.91 (95% CI: 1.10, 3.35)
Population: Newly enrolled undergraduate students at Tehran University of Medical Sciences in 2024 (n=419)

Result:

PubMed: 42430329DOI: 10.1371/journal.pone.0344179

Mechanism Graph

Healthy lifestyle behaviors improve physical health
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Better physical health reduces stress and anxiety
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Reduced stress and anxiety enhance mood and well-being
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Result: Higher life satisfaction

Limitations

  • ⚠Cross-sectional design prevents causal inference
  • ⚠Self-reported lifestyle and life satisfaction may introduce bias
  • ⚠Single university sample limits generalizability

Frequently Asked Questions

What lifestyle factors were included in the healthy lifestyle score?▼

The study assessed diet, physical activity, sleep, smoking, and alcohol use to categorize lifestyle as healthy or unhealthy.

How was life satisfaction measured?▼

Life satisfaction was measured using a validated Iranian questionnaire and categorized as good or poor.

What was the sample size and population?▼

The study included 419 newly enrolled undergraduate students at Tehran University of Medical Sciences in 2024.

Did the study control for confounding variables?▼

Yes, the analysis adjusted for age, sex, socioeconomic status, and anxiety using multivariable logistic regression.

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References

  1. 1.Eshaghi M, Karimi K, Panahi N, Azizpour Y, Razi F, Gharajeh A, Akbarpour S, Hadavandsiri F. "Examining relationship between unhealthy lifestyle and life satisfaction among new students at Tehran University of Medical Sciences.." PloS one, 2026. PMID: 42430329 DOI: 10.1371/journal.pone.0344179
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.