—  The human brain contains about 20 billion nerve cells (called neurons) that work together and produce its very small electric potentials in the synapses, which is the area of special connection between neurons. These neurons operate simultaneously and measured by their electric potential which is its amplitude capacity in microvolt (where brain capacity does not exceed 300 microvolt), while its electrical vibration frequency is measured in Hertz. The two factors, amplitude and frequency are two factors that are specific to brain waves.
—  Brain waves can be classified according to its frequency to several varieties:
—  Delta Waves: Delta frequency is from 0.4 to 4 Hz, the waves are dominant in cases of coma or deep sleep.
—   Theta waves: Theta frequency is from 4 to 8 Hz, associated with emotional states and ecstasy and dreams.
—  Alpha waves: Alpha frequency is from 8 to 12 Hz, and appears in the cases of awareness and attention.
—  SMR (Sensory Motor Rhythm) Waves: Its frequency is from 12 to 15 Hertz, appears in the cases of calm and focus states, and in special physiological situations.
Training Vagus to function at Alpha frequency may help to heal cardiac arrhythmia
 
Heart arrhythmias cause your heart to beat too fast or too slow or irregularly , it occur when the electrical impulses that coordinate heartbeats don't work properly,. Due  Neuroanatomic connections between the brain and the heart. (A M Davis and B H Natelson)

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC325088/

Reviewing possible mechanisms of brain-related arrhythmias, we suggest that the nervous system directs the events leading to cardiac damage by raising catecholamine levels and potentially inducing arrhythmia. (A M Davis and B H Natelson)

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC325088/)
 
 
The sympathetic nerve speeds up the heart rate with exertion or excitement, while The vagal nerves slow the heart rate.
Optimal wave state frequency in normal vagus activity is 7.8 Hz – 10.5 Hz.

Vagus Nerve influence this frequency according indications and interactions between heart and brain.
There is now substantial evidence that higher brain function (cortex), the brain stem and autonomic nerves affect cardiac electrophysiology and arrhythmia, and that these may function as an interactive system.( Taggart P1Critchley HLambiase PD., Heart-brain interactions in cardiac arrhythmia)

A case study conducted by Tomislav Mirkovic, Ivan Kneževič, Ivan Radan, Janez Rozman, Borut Geršak, Matej Podbregar
SIGNA VITAE 2012; 7(2): 63 - 68
On October 29, 2012
In Case reportsVolume 7 Number 2

“In conclusion, selective vagus nerve stimulation, with a combination of quasi-trapezoidal cathodic and rectangular anodic current pulses at 10Hz, offers gradual heart rate and systolic arterial pressure control.” - See more at: (http://www.signavitae.com/2012/10/frequency-dependent-effect-of-selective-biphasic-left-vagus-nerve-stimulation-on-heart-rate-and-arterial-pressure/#sthash.IHMxSOTU.dpuf)

Alfa Rhythm contribution

The solution could be achieved by tuning our brain waves accordingly.
 
  • —The human brain contains about 20 billion nerve cells (called neurons) that work together and produce its very small electric potentials in the synapses, which is the area of special connection between neurons. These neurons operate simultaneously and measured by their electric potential which is its amplitude capacity in microvolt (where brain capacity does not exceed 300 microvolt), while its electrical vibration frequency is measured in Hertz. The two factors, amplitude and frequency are two factors that are specific to brain waves.
  • —Brain waves can be classified according to its frequency to several varieties:
  • Delta Waves: Delta frequency is from 0.4 to 4 Hz, the waves are dominant in cases of coma or deep sleep.
  • Theta waves: Theta frequency is from 4 to 8 Hz, associated with emotional states and ecstasy and dreams.
  • —Alpha waves: Alpha frequency is from 8 to 12 Hz, and appears in the cases of awareness and attention.
  • SMR (Sensory Motor Rhythm) Waves: Its frequency is from 12 to 15 Hertz, appears in the cases of calm and focus states, and in special physiological situations.

Alfa Rhythm  A revolutionary transcranial
electrical stimulator: 

  • The current device is an electronic apparatus designed to emit a range of electric pulses, characterized by a user-established frequency, stimulating the brain to imitate the current frequency at work.
Novel electric set of clinically-proven devices Alfa Rhythm
 for modulating brainwaves

Alfa Rhythm stimulates the individual's brain activity level to a desired state,  within 10-30 minutes.

Research-based results involving EEG measurements support optimal cerebral stimulation though use of Delta, theta, alpha and beta wave and SMR wave frequencies, comprising a range of 3-23 Hz, enabling the brain to sustain level of prowess up to hours after actual stimulation has ceased. 

The brain receives the emitted electrical pulse and frequency and copies and acts like the same emitted specifications.


   “When the brain is given a stimulus, through the ears, eyes or other senses, it emits an electrical charge in response, called a Cortical Evoked Response .These electrical responses travel throughout the brain to become what you "see and hear." This activity can be measured using sensitive electrodes attached to the scalp.

For example, a 4 Hz brainwave is associated with sleep, so a 4 Hz sound pattern would help reproduce the sleep state in your brain. The same concept can be applied to many other mental states, including concentration, relaxation and meditation.”
  • —  A provisional patent was registered in USA.

Conclusion

Alfa rhythm device can program the vagus frequency to be in the suitable range (7.3 Hz – 10.5 Hz.)
As a result the heart will function in normal range frequency.
It could be optimal solution for heart arrhythmias

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2. Patrick GJ. Improved neuronal regulation in ADHD: An application of 15 sessions of photic-driven EEG neurotherapy. J Neurother. 1996;1(4):27-36. 
3. Ossebaard HC. Stress reduction by technology? An experimental study into the effects of brainmachines on burnout and state anxiety. Appl Psychophysiol Biofeedback. 2000;25(2):93-101. 
4. Cahn BR, Polich J. Meditation states and traits: EEG, ERP, and neuroimaging studies. Psychol Bull. 2006 Mar;132(2):180-211.
5. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC325088/
6. Taggart P1Critchley HLambiase PD.
, Heart-brain interactions in cardiac arrhythmia
7. http://www.signavitae.com/2012/10/frequency-dependent-effect-of-selective-biphasic-left-vagus-nerve-stimulation-on-heart-rate-and-arterial-pressure/#sthash.IHMxSOTU.dpuf