Music & cortisol: the stress-hormone connection
Cortisol is the body's main stress chemical — and listening to music is one everyday habit linked to lowering it. But "linked to" hides an important word: sometimes. Here's the honest picture.
General information, not medical advice. Talk to a doctor about any health concern.
If you've read that "music lowers cortisol," you've read something true — but only partly. Cortisol is the most commonly measured biological marker in studies of music listening, and the findings are encouraging. They're also messier than the confident headlines suggest, and that mess is worth understanding, because it tells you when music is most likely to help.
- Listening to calming music is linked to lower cortisol, the body's primary stress hormone.
- It's the most-studied marker in the field — and about half of clinical studies show a real stress-reducing effect.
- Not every study finds it, and one well-controlled lab study found the opposite, so the effect is a tendency, not a guarantee.
- It's best thought of as a regular wind-down habit — not a one-time fix for chronic stress.
What cortisol actually is
Cortisol is a hormone released by a chain called the HPA axis (hypothalamic–pituitary–adrenal). In short bursts it's helpful — it mobilizes energy and sharpens you during a genuine challenge. The problem is chronic elevation: when stress never switches off, persistently high cortisol is linked to health problems such as high blood pressure and weakened immunity. So "lowering cortisol" is really shorthand for "helping the body switch off the stress response" — and that's where music may play a part.
What the research shows
Music listening has been linked to lower cortisol, most clearly around stressful medical procedures; results in lab experiments are mixed.1,2 In a well-controlled experiment with 60 women, relaxing music before a standardized stress test helped one autonomic stress marker (salivary alpha-amylase) recover faster than sitting in silence — but it did not lower cortisol, heart rate or felt stress, and the music group actually had the highest cortisol response.2
Zoom out to the whole field and the signal is mixed but encouraging. A systematic review of biological markers found cortisol to be the most frequently studied, with about half of clinical studies showing a measurable stress-reducing effect from music listening — an effect that held regardless of genre, whether people chose the music themselves, or how long they listened, although most studies used classical music.3
Calming music is often associated with reduced cortisol and a quieter stress response. Cortisol is the most-studied biological marker in this research: about half of clinical studies find a stress-reducing effect, others find no change, and at least one controlled experiment found a higher cortisol response after relaxing music.
Why the studies disagree
"About half" is a number we won't smooth over. One daily-life study of students found lower cortisol when people listened to music specifically to relax, but across studies the results are inconsistent, most were run in the lab, and the mechanism is still unclear.1 Several things drive this:
- Cortisol is naturally noisy. It rises and falls on a daily rhythm and reacts to countless factors, making a music effect hard to isolate.
- Context matters enormously. Effects are clearest around stressful medical procedures such as surgery; results from laboratory stress tests are mixed.
- Studies differ wildly in music, duration, and who's listening, which scatters the results.
None of this means music doesn't lower cortisol. It means the honest claim is "sometimes, more often around stressful medical procedures" — not "always."
Cortisol's response to music is variable. Think of music as a pleasant way that often helps people feel calmer — not as a guaranteed lever for a specific hormone number.
Why this matters for you
The practical takeaway is reassuring. You don't need to chase a cortisol reading to benefit. Music that calms you is also linked to a modestly slower heart rate — part of the broader machinery we cover in the science of relaxing music. Music is simply one of the easiest, cheapest, most pleasant ways to invite that response.
How to use music for stress
- Reach for it under real stress. The effect is clearest when there's tension to release — after a hard meeting, before a daunting task.
- Choose slow, soft, soothing music you actually like. Studies find effects across genres, and personal preference shapes how well it works.3,4
- Make it a routine. Even a short listen can help you feel calmer, and many people find a regular wind-down routine useful.
- Pair it with slow breathing, which on its own is well shown to shift the nervous system toward calm.
Frequently asked questions
Does music lower cortisol?
Often, yes. Cortisol is the most-studied marker in music research, and about half of clinical studies show a measurable stress-reducing effect. It's real but not universal, and results vary by setting.
What is cortisol?
Cortisol is the body's main stress hormone, released by the HPA axis. It helps mobilize energy under stress, but chronically high levels are linked to poorer health — which is why lowering it matters.
How can I use music to reduce stress?
Listen to slow, soft, instrumental music you find soothing — ideally after a stressful event — and pair it with slow breathing, which helps calm the nervous system on its own.
Sources
- Linnemann, A. et al. (2015). Music listening as a means of stress reduction in daily life. Psychoneuroendocrinology / ScienceDirect. sciencedirect.com
- Thoma, M. V. et al. (2013). The effect of music on the human stress response. PLoS ONE. via NCBI
- Finn, S. & Fancourt, D. (2018). The biological impact of listening to music in clinical and nonclinical settings: a systematic review. Progress in Brain Research, 237, 173–200. doi.org
- Effects of Sound Interventions on the Mental Stress Response in Adults: Scoping Review (2025). JMIR Mental Health. mental.jmir.org
Written and maintained by the Relaxing Music Editorial Desk. We report the "about half" as plainly as the headline — see our research standards. Sources linked above.
For general information only; not medical advice.