Hearing voices is more common than most people realize, and it doesn’t automatically mean something is seriously wrong. A large meta-analysis covering more than 84,000 people found that roughly 1 in 10 people will hear voices at some point in their lifetime. The experience can range from a one-time occurrence triggered by stress or sleep deprivation to a recurring pattern tied to a mental health or neurological condition. What matters most is understanding why it’s happening and knowing how to respond.
Why People Hear Voices
Voices can show up for dozens of reasons, and many of them are temporary. Lack of sleep, extreme hunger, intense stress or grief, alcohol or drug use, certain prescription medications, infections (particularly urinary tract infections in older adults), and recovery from anesthesia can all trigger auditory hallucinations that resolve once the underlying cause is addressed.
When voices persist, a psychiatric or neurological condition is more likely involved. About 75% of people with schizophrenia hear voices, but schizophrenia is far from the only explanation. Voices affect 20% to 50% of people with bipolar disorder, 40% of people with PTSD, roughly 14% of those with an anxiety disorder, and about 10% of people with major depression. Neurological conditions like Parkinson’s disease, stroke, migraine, narcolepsy, brain tumors, and epilepsy can also cause them. Even hearing loss plays a role: about 16% of adults with hearing impairment experience auditory hallucinations, ranging from simple ringing to hearing speech or music.
Less commonly, voices can stem from thyroid problems, vitamin B12 deficiency, autoimmune disorders that affect the brain, low blood sugar, or liver and kidney disease. This is why a medical workup matters. The cause shapes the treatment.
When Voices Are an Emergency
Most voices are not dangerous, but some carry direct risk. “Command hallucinations,” voices that instruct someone to hurt themselves or someone else, require immediate attention. Research shows that people are more likely to act on commands when the voice sounds familiar, when they trust or feel calm about the voice, or when they hold a belief that aligns with what the voice is saying. Someone who feels powerless against the voices, or who believes the voices are omnipotent, is also at higher risk of following their instructions.
If someone you care about describes voices telling them to harm themselves or others, especially if they seem to believe the voice or have followed its instructions before, treat it as urgent. Call 988 (the Suicide and Crisis Lifeline in the U.S.) or take them to an emergency room. Don’t wait to see if it passes.
What to Do First
If someone tells you they’re hearing voices, the single most important thing you can do is stay calm and take them seriously. Don’t dismiss the experience, don’t argue about whether the voices are “real,” and don’t panic. For the person hearing them, the voices are a genuine sensory experience.
The next step is a medical evaluation. A doctor will typically start by ruling out physical causes: blood work to check for thyroid imbalances, vitamin deficiencies, blood sugar problems, or signs of infection. A toxicology screen may be done if substance use is a possibility. Depending on the person’s symptoms, brain imaging or a neurological exam may follow. Once physical causes are ruled out or identified, a mental health evaluation can clarify whether a psychiatric condition is involved. This process isn’t about labeling someone. It’s about figuring out what’s driving the experience so the right kind of help can follow.
How Voices Are Treated
Treatment depends entirely on the cause. If voices are triggered by sleep deprivation, medication side effects, or an infection, addressing the root problem usually resolves them. For voices linked to a psychiatric condition, treatment typically combines medication with therapy.
Antipsychotic medications are the most commonly prescribed drugs for persistent hallucinations. They work by reducing the activity of dopamine, a brain chemical that appears to be overactive in people experiencing psychosis. Newer versions of these medications also affect serotonin levels. These drugs don’t work overnight. It can take several weeks to find the right medication and dosage, and side effects are common enough that ongoing monitoring with a doctor is part of the process.
Cognitive behavioral therapy adapted for psychosis (often called CBTp) is one of the most effective non-drug approaches. It doesn’t try to make the voices disappear. Instead, it helps people change their relationship to the voices so they cause less distress. A therapist might help someone examine the beliefs they hold about their voices, like “the voice is all-powerful” or “I have to do what it says,” and test whether those beliefs hold up. Behavioral experiments, where someone gradually faces situations they’ve been avoiding because of the voices, are another core tool.
Coping Strategies That Help Day to Day
Therapists also teach practical techniques for managing voices in the moment. These include talking to another person (which occupies the brain’s language centers and can quiet voices), slow diaphragmatic breathing, progressive muscle relaxation, and visualization of a calm scene. A technique called “refocusing” involves deliberately directing attention to something in the physical environment, like naming objects you can see, to pull the brain away from the internal experience. Some people find that humming or reading aloud helps, because it engages the same vocal pathways the brain uses to generate the voices.
Mindfulness and acceptance-based strategies are also used. Rather than fighting the voices or trying to suppress them, these approaches teach people to notice the voices without reacting to them, reducing the fear and distress that often make the experience worse.
Peer Support and the Hearing Voices Approach
Beyond clinical treatment, peer support groups have become a powerful resource. The Hearing Voices Network, which operates in over 30 countries, runs groups built on a simple premise: hearing voices is a meaningful human experience, not just a symptom to be eliminated. In these groups, people are free to share what their voices say, explore possible triggers, and develop their own understanding of why the voices are there, whether that framework is psychological, spiritual, cultural, or medical.
These groups serve several practical functions. They help people identify the specific situations that trigger their voices, giving them more control. They provide a safe space to talk openly about an experience that carries heavy stigma. And they help people build an identity beyond “patient” or “mentally ill,” which research suggests is fundamental to long-term recovery. Many participants find that as they understand their voices better and feel less afraid of them, the voices become less intrusive on their own.
How to Support Someone Who Hears Voices
If you’re the friend, partner, or family member of someone hearing voices, your role isn’t to fix the problem. It’s to be a steady, nonjudgmental presence. Ask open-ended questions: “What are the voices like? When do they tend to show up? How do they make you feel?” This isn’t just emotional support. Helping someone map their triggers and patterns is one of the most useful things a hearing voices group or therapist does, and you can start that process in a conversation.
Avoid telling the person that the voices aren’t real, that they’re “crazy,” or that they just need to ignore them. These responses, however well-meaning, tend to make people hide their experiences rather than seek help. Also avoid making all your interactions about the voices. The person is still a whole person with interests, goals, and a life beyond this one experience.
Encourage them to see a doctor, offer to help them find a therapist who has experience with voice-hearing, and look into whether a Hearing Voices Network group exists in your area. If the voices are causing significant distress, interfering with daily functioning, or including commands to do harmful things, help them access professional support quickly rather than waiting.