The Science Behind Sound
Research into music, vibration, and listening experiences continues to reveal how sound can influence our well-being.
Supported
Multiple studies support certain music-based approaches to relaxation and stress reduction.
Promising
Preliminary or developing research suggests possible benefits that deserve further study.
Emerging
Research is developing, with early findings and open questions that invite further study.
Experimental
New ideas and applications are being explored, with more direct research needed.
Research Highlights
Read our original summaries, then follow the research in greater detail.
Health Psychology Review · 2020
Effects of music interventions on stress-related outcomes: a systematic review and two meta-analyses
Systematic review and meta-analysesA review of 104 randomized trials found benefits for psychological and physiological stress-related outcomes across varied music interventions.
What Researchers Studied
Researchers combined findings from randomized trials of music interventions in clinical and everyday settings.
What the Research Found
Across the reviewed studies, music interventions were associated with reductions in both subjective stress and physiological indicators.
What Is Still Being Studied
The interventions varied widely, and these findings do not establish effects for any one Sonojuv track or particular audible frequency.
How It Informs Sonojuv
This research helps inform Sonojuv's Unwind experience and the idea of personalized, comfortable listening.
Cochrane Database of Systematic Reviews · 2022
Listening to music for insomnia in adults
Systematic reviewThis Cochrane review studied music listening for adults with insomnia and found evidence of improvements in subjective sleep quality.
What Researchers Studied
This review evaluated controlled studies of people with insomnia who listened to music as a sleep aid.
What the Research Found
The authors reported improvements in subjective sleep quality for music-listening interventions; the certainty and outcomes differ across measures.
What Is Still Being Studied
Research on specific frequencies, individual session designs, and long-term outcomes is less established.
How It Informs Sonojuv
It supports exploring calming music as part of the experience surrounding Sonojuv's Sleep Better goal.
International Journal of Psychophysiology · 2024
The effects of music and auditory stimulation on autonomic arousal, cognition and attention: A systematic review
Systematic reviewA review of 31 studies found mixed or insufficient evidence linking various auditory stimuli, autonomic responses and cognitive performance.
What Researchers Studied
Researchers examined studies of music, noise and binaural beats alongside physiological arousal and cognitive-performance measures.
What the Research Found
Different types of sounds and study designs produced mixed results, without a single established effect on concentration.
What Is Still Being Studied
Physiological arousal and cognitive outcomes were often measured separately, limiting direct conclusions.
How It Informs Sonojuv
Sonojuv can use preferences and comfort to personalize Stay Focused sessions while the evidence continues to develop.
Evidence levels describe the approaches studied. They are not ratings of a specific Sonojuv listening program.