The Healing Power of Music, Explained
This article was written by Chelsea Mao and is part of a series provided by upper year Health Sciences students at McMaster University.
I have always been infatuated with music. Playing piano and flute, albeit it was my mom who made me play these instruments, since I was nine, has helped me develop patience and passion. These days, it’s my bass guitar that I turn to when life feels overwhelming. There’s something grounding about its low, steady rhythms that feels almost meditative. Music has become my go-to stress reliever, a way to unplug from the chaos and reconnect with myself. Through years of practice, I didn’t just learn notes and scales—I learned patience, discipline, and the quiet joy of creative expression. Music has always been an instrument of comfort for me, and I believe many others can relate. With easy access to technology, music is always within reach, serving as a tool for mental well-being.
Music is more than something we listen to while driving or showering, it’s powerful in the way it can shape how we feel, move, think, and connect. But what is it about music that can move us in such an impactful way? It ranges from rhythm to social connectivity, with science deeply rooted in its influence on our wellbeing. With my experience with music, I wanted to see what it is about music that helps with one’s quality of life.
Tonality plays a crucial role in shaping our emotional responses to music. It encompasses harmony, melody, timbre, and tones in speech and sound. The Vocal Similarity Theory suggests that our experience with tones shapes how we perceive and process music. Music therapists and musicians have intuitively used tonality to modulate emotions, aligning with scientific findings on how specific tonal qualities impact mood. I personally love listening to lively music when I’m with my friends, or listening to classical music when I need to calm any nerves I have with school.
Rhythm is another vital element that influences our sensory and motor functions. Neural Resonance Theory suggests that rhythm plays a role in improving sensory and motor functions in music therapy. Rhythmic music has historically transformed labour-intensive work into more bearable experiences. The biological foundations of rhythm offer insights into how music can address challenges in mood, cognition, and motivation.
Reward mechanisms in the brain are strongly linked to music. Listening to music activates the brain’s reward system, releasing dopamine and fostering pleasure, motivation, and emotional regulation. This activation explains why music can be deeply satisfying and even addictive in some cases. The way music stimulates the brain’s reward system contributes to its effectiveness in alleviating symptoms of anxiety, depression, and stress. After I finish a test, I usually grab my bass and start jamming to my favourite songs. It’s my go-to stress reliever! As soon as I start playing, I slip into a flow state, letting my fingers follow the vibe and my emotions lead the rhythm. It feels extremely freeing.
Sociality is another core aspect of music’s impact. Music strengthens bonds, enhances group cohesion, and provides a means of expression beyond language. Since music is inherently social, it has been used across cultures to bring people together, from communal singing to shared musical experiences. This social component of music further supports its therapeutic applications, as engaging in music-making with others fosters a sense of belonging and emotional connection. For my family events, we would often play classic, nostalgic Chinese music, and it’s a beautiful way for all of us to connect emotionally.
Incorporating music into our everyday lives is more than just a way to pass time, it’s a practice that positively impacts emotional well-being, strengthens social bonds, and enhances cognitive and sensory functions. From its ability to ground us in moments of stress to its role in fostering connections, music is a unique and accessible tool that aligns with our biological, emotional, and social needs. By embracing music intentionally, we create a form of joy and happiness that can enhance the quality of our lives.


