Carefully chosen music may help the brain and body recover faster after intense stress, according to new research from the Chinese Academy of Sciences. The way a musical piece builds and then releases tension appears to play an important role in restoring balance within the nervous system.
Psychologists from the Institute of Psychology at the Chinese Academy of Sciences conducted two experiments involving a total of 120 healthy young adults. Participants first completed a demanding math task that required them to solve problems quickly while immediately seeing whether their answers were correct.
The challenge reliably triggered a stress response, including faster heart rate, increased sweating, higher cortisol levels and a decline in mood. After completing the task, participants listened either to relaxing piano music or to natural sounds such as rain, waves, streams and waterfalls.
The comparison with natural sounds was important because previous studies have often compared music with silence. Since stress naturally declines over time, the researchers wanted to determine whether music offered benefits beyond simply listening to a pleasant sound.
Music timing shapes stress relief
The results showed that timing was critical. Listening to music before the stressful task did not significantly reduce the initial physiological stress response or prevent increases in cortisol and heart rate.
The pattern changed after the math test ended. Participants who listened to piano music afterward experienced a greater improvement in positive mood. Their heart rate and skin conductance, both associated with nervous system activity, also returned more quickly toward baseline levels.
Cortisol levels during the recovery period were also lower in the music group than among participants who listened only to nature sounds. This suggests that music may actively support the body’s return to balance rather than simply masking stress with pleasant background noise.
What brain scans reveal about music
In the second experiment, researchers used functional MRI to examine what happened in the brain during the recovery period. They focused on the auditory cortex, insula and thalamus, regions involved in processing sound, monitoring the body and regulating arousal.
Following the stressful task, music altered how these brain regions communicated with one another. Directional communication between the auditory cortex and insula initially became stronger, followed by increased connectivity between the insula and thalamus.
The later change involving the insula and thalamus was associated with a greater improvement in mood. This pattern suggests that music may help the brain adjust internal bodily signals and emotional responses after stressful experiences.
Musical tension as a recovery tool
The researchers also highlighted the concept of musical tension — the shifting sense of expectation, build-up and release that listeners experience as a piece unfolds. They suggest that this temporal structure could help explain how music supports recovery from stress.
Music is an organized signal that develops through cycles of anticipation, tension and resolution. The brain may use this structured pattern as a scaffold for reorganizing networks involved in stress regulation and emotional balance following a challenging experience.
However, the findings do not mean that all music will necessarily have the same effect. The study used specific relaxing piano pieces and included only healthy young adults. It remains unclear whether similar benefits would occur in people with anxiety disorders or depression.
Researchers also do not yet know whether a listener’s favorite music, which could be faster or more complex, would be equally effective. The authors emphasize the need for further research examining expectations, individual preferences and how long the calming effects of music persist.
Despite these unanswered questions, the study adds to growing evidence that music may serve purposes beyond entertainment. In the future, structured musical interventions could potentially support clinical treatments for stress-related conditions and help people recover more efficiently from everyday psychological strain.
