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Binaural beats combined with pure music reduces perceived stress in college students with poor sleep quality

A 4-week bedtime audio intervention combining binaural beats with pure music significantly reduced perceived stress (PSS scores) compared to a control group in college students with poor sleep quality (PSQI > 7). The binaural beats group was more effective at reducing stress than pink noise plus pure music, but no significant group differences were found for morning salivary cortisol levels.

Last updated: Jul 7, 2026•1 RCTs•📖 Read as article →

Evidence Score

Evidence Score42/100
Human RCT★★☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. The impact of sound intervention on sleep quality and stress levels in college students: a randomized controlled trial.

rct

Hou H, Wang J, Yue X · Frontiers in psychology (2026)

Participants: 66
Duration: 4 weeks intervention, with follow-up at week 6
Intervention: 30-minute audio intervention at bedtime combining binaural beats with pure music, administered for 4 consecutive weeks, 5 nights per week
Outcome: Perceived stress (PSS score), sleep quality (PSQI score), morning salivary cortisol concentration
Effect Size: N/A
Population: 66 college students with poor sleep quality (PSQI score > 7)

Result: In a three-group randomized controlled trial of 66 college students with poor sleep quality (PSQI > 7), a 30-minute audio intervention combining binaural beats with pure music at bedtime for 4 weeks (5 nights/week) significantly reduced perceived stress as measured by the PSS, with significant time, group, and time-by-group interaction effects (p < 0.05). The binaural beats + pure music group was more effective at reducing stress than pink noise + pure music or control. However, no significant group differences were found in morning salivary cortisol levels, which showed only a main effect of time.

PubMed: 42389090DOI: 10.3389/fpsyg.2026.1859138

Mechanism Graph

Audio intervention (binaural beats + music) is played at bedtime
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Binaural beats may entrain brainwave activity to promote relaxation
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Reduced physiological arousal and perceived stress
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Improved sleep quality and lower perceived stress scores

Limitations

  • ⚠Cortisol measured at a single daily time point (30 min after awakening) is insufficient to infer modulation of HPA axis activity
  • ⚠Small sample size (n=66) limits generalizability
  • ⚠No blinding of participants to intervention group assignment

Frequently Asked Questions

What is binaural beats and how does it work?▼

Binaural beats are an auditory illusion created when two slightly different frequencies are played in each ear, potentially inducing brainwave entrainment and relaxation.

How long did the intervention last?▼

The intervention lasted 4 consecutive weeks, with 30-minute audio sessions each night, 5 nights per week.

Did the intervention improve sleep quality?▼

Yes, the study found significant improvements in sleep quality (PSQI scores) over time, with both intervention groups showing benefits compared to control.

Why was cortisol not affected?▼

Cortisol was measured only once in the morning (30 min after awakening), which may not capture short-term changes in HPA axis activity; the authors note this limitation.

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References

  1. 1.Hou H, Wang J, Yue X. "The impact of sound intervention on sleep quality and stress levels in college students: a randomized controlled trial.." Frontiers in psychology, 2026. PMID: 42389090 DOI: 10.3389/fpsyg.2026.1859138
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.