This brain health creator's nature sounds claims, fact-checked
Quick answer
Natural sound therapy involves exposure to environmental audio like water, wind, or animal sounds to potentially reduce stress responses. Small studies suggest modest parasympathetic activation and temporary cortisol reduction, but effects vary significantly between individuals and clinical applications remain limited.
Our take · Written by FormBlends editorial team · Reviewed by FormBlends Medical Team· This is not a transcript. It is our independent review of the video above.
What does this video actually claim?
Liliya Akhmetzyanova claims natural sounds trigger measurable nervous system changes. She says flowing water, forest sounds, and birdsong activate the parasympathetic nervous system, reduce cortisol levels, and improve focus through rhythmic patterns.
Her post targets the biohacking crowd with promises of stress reduction and emotional balance. The claims sound scientific but need scrutiny.
Does the science back this up?
Natural soundscapes do affect the nervous system, but the evidence is mixed. A 2017 study by Gould van Praag et al. in Scientific Reports found that natural sounds increased parasympathetic activity compared to artificial noises. Heart rate variability improved when participants listened to water and bird sounds.
However, the cortisol story isn't clear-cut. A 2019 study by Franco et al. in International Journal of Environmental Research found forest bathing reduced salivary cortisol by 12.4% over 15 minutes. But this involved full forest immersion, not just audio.
The focus claims are weaker. While some studies show improved attention with nature sounds, the effects are often modest and temporary.
What did they get wrong?
Akhmetzyanova oversells the "measurable impact" without specifying what's actually measured. Most studies use subjective stress scales or short-term physiological markers, not long-term health outcomes.
She also ignores individual variation. The same 2017 study showed that people with anxiety disorders sometimes had opposite responses to nature sounds. What relaxes one person might agitate another.
The "familiar sounds signal safety" claim lacks citation. This sounds like evolutionary psychology speculation rather than tested science.
Should you trust sound therapy for stress?
Nature sounds won't hurt and might help some people relax. But don't expect miracle cures for chronic stress or anxiety disorders.
The research shows modest, temporary benefits. If you find ocean waves soothing, great. Just don't replace proven stress management techniques with a playlist.
Real stress reduction comes from sleep, exercise, social connection, and sometimes therapy or medication. Nature sounds can be a nice add-on, not a replacement.
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Claim being checked
Natural sound therapy involves exposure to environmental audio like water, wind, or animal sounds to potentially reduce stress responses.
FormBlends verdict
Natural sound therapy involves exposure to environmental audio like water, wind, or animal sounds to potentially reduce stress responses. Small studies suggest modest parasympathetic activation and temporary cortisol reduction, but effects vary significantly between individuals and clinical applications remain limited.
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Use the clip as a claim to verify, not a treatment plan
What it helps with
- Natural sound therapy involves exposure to environmental audio like water, wind, or animal sounds to potentially reduce stress responses. Small studies suggest modest parasympathetic activation and temporary cortisol reduction, but effects vary significantly between individuals and clinical applications remain limited.
- Natural sounds can increase parasympathetic nervous system activity by modest amounts in controlled studies
- Cortisol reduction studies used full forest immersion, not just audio playback of nature sounds
What it may miss
- It may not cover eligibility, contraindications, medication interactions, lab history, or dose escalation.
- Compound access, legal status, and product quality still need a separate safety check.
- Social video captions rarely show the full evidence base behind a claim.
Best next step
Compare the claim against a FormBlends guide, safety page, and licensed-provider review before acting.
Start provider reviewWhat You'll Learn
- Natural sounds can increase parasympathetic nervous system activity by modest amounts in controlled studies
- Cortisol reduction studies used full forest immersion, not just audio playback of nature sounds
- Individual responses to nature sounds vary significantly, with some anxious people showing opposite effects
- Focus and attention improvements from nature sounds are typically temporary and small in magnitude
- Sound therapy shouldn't replace proven stress management like sleep, exercise, or professional treatment
- The "familiar sounds signal safety" claim lacks supporting research citations
- Nature sounds are a low-risk addition to stress management but aren't a standalone solution
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About the Creator
Liliya Akhmetzyanova | Brain Health & Biohacking · Instagram creator
35.5K views on this video
Natural sounds have a measurable impact on our nervous system. How natural sounds benefit the nervous system: * Activate the parasympathetic system: Sounds like flowing water, forest ambiences, and b
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Not medical advice. This video was made by Liliya Akhmetzyanova | Brain Health & Biohacking, not by FormBlends. Our write-up above is an editorial review, not a medical recommendation. Talk to your doctor before making any decisions about medications or treatments.