HomeresearchScientific Research about Neurostimulation

Scientific Research about Neurostimulation


In this article I show many studies that examine the effectiveness of neurostimulation in certain disorders.

Study selection was carried out by Dr. Petros Kattou – SOZO boss in Cyprus and comes from the original website from Cyprus.


70% of patients treated in this way have noticeable success. In many “testimonials” and articles on my homepage I show the results –> SOZO article

All disorders displayed here have Evidence Level 3, and all brain stimulators we use are certified for treatment and also supervised home treatment.

Most importantly, all studies report that no noticeable or persistent side effects occurred!


Disorders we treat

Neuromodulation techniques are used to assist in the treatment of various neurological, chronic and mental illnesses.

  • Depression
  • Migraines
  • Fibromyalgia
  • Failed Back Surgery Syndrome (FBSS) – Pain despite back surgery
  • Chronic postoperative pain
  • Anxiety disorders
  • Bipolar disorder
  • Insomnia
  • Post-traumatic stress disorder (PTSD)
  • Parkinson’s disease
  • Multiple sclerosis
  • Learning disabilities
  • Irritable bowel syndrome
  • Mild cognitive impairment
  • (Addiction)
  • (Oncology)
  • Attention Deficit Disorder (ADHD)


about Dr. Retzek's connection with the SOZO center in Cyprus

Dr. Retzek (and Lenna) trained 4 times withDr. Petros Kattouin Cyprus since July 2023

  • Dr. Retzek is a trainer for the SOZO method
  • Since September 2023, neurostimulation has been a main competency in our practice; a specially trained nurse does training with our patients all day long
  • Previous experience with around 60 patients and this form of therapy (as of December 23). Since we have only been working with it “officially” since November 23, we will quickly get more experience with it and report back.



Evidence based treatment



Here we see a surprisingly good response from our clientele. In the longer term, this will probably become an EBM level 1 therapy (currently level 2)

e.g. studies neurostimulation for depression







At the moment I would only estimate success at 50% from our own clientele

Studies on brain stimulation for MIGRAINE









reacts very slowly, less noticeable for the patient than for everyone around her who notices after just a few days: “She is feeling better, she has more energy and looks better and complains significantly less about pain.” The patient’s subjective perception takes longer to lose the prominent impression of pain. We also have good feedback here with subcutaneous ozone insufflation

Neurostimulation against FIBROMYALGIA




Failed back surgery – “failed back-spine syndrome”

see our “parade patient” Gori – we have another patient who has suffered from severe pain since 1990 and is now almost pain-free !




chronic postoperative pain

see our “parade patient” Gori – we have another patient who has suffered from severe pain since 1990 and is now almost pain-free !

Brain Stimulation for POSTOPERATIVE PAIN








Anxiety-panic disorders

Evidence for brain stimulation for anxiety/panic disorders




Bipolar disorders

We already have our own experience with a patient here, which is quite encouraging

Improve bipolar disorder through brain stimulation






In our practice, around 50% of patients manage to sleep through the night, but around 20% fall back asleep more quickly after they wake upSo far the number of cases has only been around 10 patients

Trials for Brain Stimulation for Insomnia





Post Traumatic Stress Disorder – PDST

So far we have seen a really good response from our clientele.

Evidence for PDST treatment with brain stimulation



Parkinson’s disease

So far we have seen immediate improvements in EVERY patient after just a few minutes. However, lasting improvements only occur after a few months of prolonged training

Studies on Neurostimulation in Parkinson's









Multiple sclerosis

Here we see a mixed response: in every case so far an improvement, but in 25% of the cases so far also “reactions” (“excretion reactions?” –> metallic taste ……).

However, the study situation is clear: according to the studies, brain stimulation has NO side effects.

Studies on brain stimulation in multiple sclerosis









Learning disabilities – learning disorders

We have not yet treated any cases here in our practice – we have had quite successful ones so farI BENAUDIRA used or recommended. My son and I regularly do this stimulation several times a week because we are “sharper” then.

Studies on brain stimulation for learning disabilities








Irritable Bowel Syndrome IBS

Studies on IBS and vagal stimulation or tDCS





Addiction disease

Petros works successfully (60%) with cocaine addiction, heroin addiction, nicotine, sugar…… – we haven’t done this special additional training yet

Neurostimulation as ADDICTION Treatment Option - Studies










Oncology – additional support for cancer

Studies brain stimulation as an adjunctive treatment for cancer










Attention Deficit Hyperactivity Syndrome ADHD

Attention deficit hyperactivity syndrome

Here, too, we have not personally had any patients

Studies on the effectiveness of neurostimulation for ADHD







Are you a doctor and want to learn this?

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The following text is copied from the SOZO Brain Center website

By partnering with the SOZΩ Brain Center, healthcare professionals gain access to these revolutionary technologies and enjoy our full support in implementing neuromodulation techniques such as tDCS and taVNS in their practice.

We provide comprehensive training, certification and ongoing guidance to ensure the safe and effective integration of these technologies into existing treatment plans.

Raise the standard of medical care in your practice through the effectiveness of neuromodulation.

Register for training in brain stimulation at the SOZO center in Cyprus