Music Isn’t Just Sound. It Affects Brain and Body. Learn How!

Research reveals how music shapes emotion, cognition, and recovery across both healthy individuals and clinical populations

This article is just one part of a series named “Beyond the Gear“. Explore how sound affects your brain, hearing, and the way you experience music, then dive into more unique content.

Music accompanies human beings across nearly every culture and historical period, and is often perceived as a matter of taste, emotion, or leisure alone. However, over the past few decades, a substantial and growing body of scientific literature has demonstrated that music is not merely an emotional experience, but a stimulus with measurable effects on the body, brain, and mind. Studies from fields such as psychology, neuroscience, medicine, and rehabilitation show that music can influence emotional regulation, stress responses, cognitive functioning, and even the course of physical and mental illnesses.

The aim of this article is to present an evidence-based review of these effects, drawing on studies published in leading scientific journals. It seeks to make key findings accessible, explain the methodology and conclusions of each study, and distinguish between well-supported effects and popular beliefs that are not yet backed by research. In doing so, we deepen our understanding of music as a meaningful tool at the intersection of body, mind, and science.

The Effects of Music on Healthy Individuals

1. Music, Emotion, and Stress Regulation

This article demonstrated the emotional responses to music. It is a theoretical review aimed at explaining how music evokes emotions, and not just whether it does so. The researchers analyzed dozens of previous studies in psychology, neuroscience, and music research, and proposed six primary mechanisms through which music affects emotions, including physiological arousal, emotional memory, emotional contagion, and musical expectancy. They emphasize that music does not affect every individual in the same way, and that its impact depends on personal history, cultural context, and current mental state.

One of their key findings is that emotional responses to music do not require formal musical training.

The article demonstrates that music can serve as an effective tool for emotional regulation even among healthy individuals.

Their central conclusion is that music is a complex emotional stimulus operating across multiple parallel pathways.

Another study examined the effect of music on physiological stress responses. The researchers recruited approximately 60 healthy participants and exposed them to a stress-inducing task involving public speaking and mental arithmetic in front of an audience. Participants were then divided into three groups: one listened to relaxing music, another listened to the sound of water, and the third rested in silence. Across all groups, salivary cortisol levels, heart rate, and subjective stress were measured. The results showed that the music group experienced a faster and more significant reduction in cortisol compared to the other groups. This finding suggests that music does more than distract—it has a measurable effect on the hormonal system.

The researchers concluded that music can be an effective tool for stress recovery even in healthy populations, while noting that its impact depends on the type of music and individual preference.

2. Music and Cognition – A Critical Examination

This article published in “Nature” reexamines the popular claim known as the “Mozart effect,” which suggests that listening to classical music enhances intelligence. The researchers conducted a series of controlled experiments in which participants listened to Mozart, recorded instructions, or silence, and were then asked to perform various tasks. The sample consisted of healthy college students, and the effect was measured only in the short term. The findings showed a small, temporary improvement in performance after listening to music, but the effect quickly dissipated.

The researchers argue that the improvement stems from increased arousal and mood rather than any deep cognitive change.

They emphasize that there is no evidence that music increases general intelligence.

Their conclusion is that the Mozart effect is not entirely a myth, but its impact is very limited.

Music and Mental Health Disorders

1. Depression

One of the most comprehensive reviews in the field investigated the effect of music therapy for depression, and is considered also today as a gold standard. The researchers analyzed nine randomized controlled trials involving over 400 patients diagnosed with depression. The studies compared standard treatment (pharmacological or psychotherapeutic) with treatment that included music therapy as an addition. Music therapy involved structured sessions with a trained therapist, not just passive listening.

Their findings showed a significantly greater reduction in depressive symptoms in the music therapy groups. Additionally, there was increased motivation and emotional engagement in treatment. The researchers note that the evidence supports music therapy as an adjunct, but not a replacement for medical treatment.

Their conclusion is that music therapy is an evidence-based complementary tool in the treatment of depression.

2. Schizophrenia

A review article which demonstrated the effect of music therapy for people with schizophrenia, included 18 randomized controlled studies involving approximately 1,200 patients with schizophrenia. Music therapy interventions included musical improvisation, group playing, and guided listening, alongside standard pharmacological treatment. The findings showed significant improvement in negative symptoms such as emotional withdrawal and social difficulties. However, the effect on positive symptoms, such as hallucinations, was more limited.

The researchers found that longer and more intensive treatment was more effective than shorter interventions. They emphasized that the therapeutic relationship is a key factor in the success of the intervention.

Their conclusion was that music therapy can improve functioning and quality of life, but does not replace antipsychotic medication.

3. Trauma and PTSD

A mixed-method study examined the use of group drumming among individuals affected by trauma. The sample included both military veterans and civilians who had experienced traumatic events. Participants underwent a series of group sessions using semi-structured drumming. Researchers measured anxiety levels, sense of control, and emotional processing before and after the intervention, and found significant improvements in emotional regulation and the ability to express difficult emotions.

Participants reported that music enabled non-verbal expression of traumatic experiences. However, the researchers emphasize that this approach is best suited as a complementary intervention rather than a replacement for standard treatment.

Their conclusion is that music can serve as a bridge for emotional processing in trauma.

Music and Physical Illness

1. Parkinson’s Disease

This study examined the effect of rhythmic auditory stimulation on gait in patients with Parkinson’s disease. The sample included patients at varying levels of disease severity, who were asked to walk both with and without a steady musical rhythm. Measurements included walking speed, stride length, and stability.

The findings showed that when combined with musical rhythm, there was a significant increase in walking speed and symmetry. The researchers explained that the external rhythm bypasses impaired neural mechanisms and provides a timing cue for movement.

Their conclusion was that music can serve as an effective rehabilitation tool. This study influenced the development of neurologic music therapy techniques for Parkinson’s patients.

2. Dementia

This controlled study investigated the cognitive, emotional, and social benefits of regular musical activities in early dementia. It included patients with dementia and their caregivers. Participants were divided into groups: one engaged in singing, another listened to music, and a third served as a control group with no intervention. The exposure to these stimuli lasted several months, and cognitive and emotional assessments were conducted over time.

The findings showed that both music groups experienced a slower rate of cognitive decline and improvements in mood.

The effect was particularly strong in autobiographical memory. Additionally, caregivers reported a reduction in emotional burden. The researchers note that musical memory is often preserved even in advanced stages of the disease, which may explain its impact.

Their conclusion is that music is an accessible and safe therapeutic tool in dementia care.

3. Medical Pain

This meta-analysis investigated the effects of music as an aid for postoperative recovery in adults. It included 73 studies involving more than 7,000 postoperative patients. The researchers examined the effects of listening to music before, during, and after surgery, and found that music reduced reported pain, anxiety, and the need for analgesic medication. This effect was observed regardless of the type of surgery or anesthesia.

The researchers emphasized that music is a low-cost, non-invasive intervention with no known side effects. However, they noted that music should not replace pharmacological treatment.

Their conclusion is that music is an evidence-based adjunct in medical care.

Conclusion

The review of scientific literature demonstrates that music is far more than a form of entertainment or artistic expression. It has measurable and meaningful effects on both physical and mental functioning across diverse populations. Among healthy individuals, music has been shown to influence emotional regulation, stress response, motivation, and cognitive performance, while also highlighting that these effects depend on context, duration of exposure, and individual characteristics of the listener.

At the same time, clinical studies indicate that music can serve as a complementary therapeutic tool in addressing mental health conditions such as depression, schizophrenia, and trauma, primarily by enhancing emotional expression, improving social functioning, and reducing psychological distress.

In addition, the research presents strong evidence for the effects of music on physical illnesses, particularly in neurology, rehabilitation, and pain management. Studies involving patients with Parkinson’s disease, dementia, and those recovering from surgery suggest that music can improve motor function, stimulate memory, enhance mood, and even reduce pain perception and medication use. However, it is important to emphasize that music is not a substitute for evidence-based medical or psychological treatment, but rather a supportive tool that should be integrated in a controlled and personalized manner.

Ultimately, the findings suggest that when used thoughtfully and within an appropriate therapeutic context, music can serve as a unique bridge between a fundamental human experience and a scientifically grounded intervention, connecting the worlds of culture, medicine, and research.

Everyone has that one song that meant something in a hard moment.
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