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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Yes. You can try controlled breathing or mindfulness without buying or using a vagus nerve stimulator. Research suggests these practices may help some adults with stress or anxiety, but neither is guaranteed to work, and neither should be treated as a substitute for medical care. They also do not reproduce the effects of a stimulation device.
Which no-device approaches have evidence?
The most directly relevant evidence in the sources reviewed concerns breathing exercises and meditation or mindfulness. Results vary by practice, study design, and outcome, so these are options to try—not proven treatments for every kind of stress.
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Controlled breathing
A systematic review of 19 studies of adults, published online in 2024 and included in a 2025 journal issue, found that 12 studies reported significant anxiety improvement and nine reported significant stress improvement. The authors said evidence from large randomized controlled trials remains limited. Read the review on PubMed.
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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →A separate review identified 72 breathing interventions; 54 met the authors’ definition of an effective intervention for stress or anxiety. Across those studies, effective practices were associated with avoiding fast-only breathing and sessions shorter than five minutes. Human-guided training, repeated sessions, and longer-term practice also appeared among the components associated with effective interventions. These are patterns in a varied set of studies, not a recipe that guarantees an individual result. Read the review on PubMed.
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Mindfulness or meditation
A 2014 meta-analysis of 47 trials found moderate evidence that meditation programs improved anxiety and low evidence for improvements in stress or distress. It found no evidence that meditation programs outperformed active approaches such as exercise or other behavioral therapies. The results concern the programs and outcomes studied, not every meditation style or person. Read the meta-analysis on PubMed.
How to try breathing or mindfulness
Choose the option that feels comfortable and realistic to repeat. There is no need to buy a device or follow an exact breath count or breath-hold routine.
- For breathing: Sit or lie somewhere comfortable and gently slow and regulate your breathing. Keep it comfortable rather than forcing deep breaths or holding your breath.
- For mindfulness: Spend a brief period noticing the breath, sounds, or sensations in the body. When attention wanders, bring it back without judging yourself.
- Notice your response: Stop if the exercise increases discomfort or distress. Try a different approach, or seek guidance from a qualified health professional if you are unsure what is suitable for you.
These suggestions are low-equipment ways to explore the practices described in the reviews; the studies do not establish one ideal routine for everyone.
What the evidence does—and does not—show
- Stress and anxiety are not interchangeable outcomes. A study reporting an anxiety improvement does not necessarily show that persistent stress, daily functioning, or a diagnosed anxiety disorder improved.
- Study counts are not success rates for individuals. The breathing reviews pooled different interventions and study designs. Their findings suggest possible benefit, not certainty about how a particular person will respond.
- Comparisons matter. The meditation meta-analysis did not find superiority over active alternatives. It does not establish that meditation is the best option, or that other practices are ineffective.
- Blood-pressure findings answer a different question. A 2025 review compared stress-management and relaxation interventions for short-term blood-pressure outcomes in people with hypertension or prehypertension; it is not a direct comparison of everyday stress-relief methods. Read that review.
Safety and when to seek help
Meditation is usually considered to have few risks, but potential harms have not been studied enough to make definitive safety claims. NCCIH summarizes a 2020 review of 83 studies and 6,703 participants in which about 8 percent experienced a negative effect; anxiety and depression were the most commonly reported. That figure is not a precise risk estimate for every practice or population. See NCCIH’s effectiveness and safety guidance.
NCCIH advises: “Don’t use meditation or mindfulness to replace conventional care or as a reason to postpone seeing a health care provider about a medical problem.” If distress persists, disrupts daily life, or worsens, discuss it with a qualified health professional.
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