From a brainwave entrainment effectiveness perspective, it’s my understanding that the response from isochronic tones stimulation starts to diminish over 30Hz and that 40Hz is about the limit for using them. So from what I’ve read on the topic a 100Hz beat wouldn’t work, probably because it’s too fast for the brain to process and synchronise with it.
Proceedings of the 9th Conference on Interdisciplinary Musicology – CIM14. Berlin, Germany 2014 [14] Universidad Complutense de Madrid. (2006). Proyecto de apoyo a la evaluación psicológica clínica. Retrieved from Apoyo EPC 2006/INSTRUMENTOS EVALUACION/TRASTORNOS DE ANSIEDAD/EVALUACION GENERAL DE LOS TRASTORNOS DE ANSIEDAD/ESCALA DE ANSIEDAD ESTADORASGO (STAI)/STAI_P.pdf [15] Universidad Complutense de Madrid. (2006). Proyecto de apoyo a la evaluación psicológica clínica. Retrieved from Apoyo EPC 2006/INSTRUMENTOS EVALUACION/TRASTORNOS DE ANSIEDAD/EVALUACION GENERAL DE LOS TRASTORNOS DE ANSIEDAD/ESCALA DE ANSIEDAD ESTADORASGO (STAI)/STAI_F.pdf [16] Hassan, H., Murat, Z., Ross, V., & Buniyamin, N. (2012). A Preliminary Study on the Effects of Music on Human Brainwaves. International Conference on Control, Automation and Information Sciences (ICCAIS) [17] Johnson, J., Petsche, H., Richter, P., Von Stein, A., & Fiilz, O. (1996). The Dependence of Coherence Estimates of Spontaneous EEG on Gender and Music Training. University of California Press. Annexes:
Meditation Begins • Mind Chatter Slows Down • Great For Learning & Studying • Creative Ideas Flow • Reverse Brain’s Aging • Habits, Fears, Phobias Melt Away • Calm & Peaceful • First Layer Of Subconscious Mind • Gateway To Deeper Mental States • Advanced Focus • Relaxation Begins • Serotonin • Endorphins • Good For Anxiety, Depression, Stress, Panic • Mind Power • Happiness • Confidence
Stress is a significant individual and public health problem that is associated with numerous physical and mental health concerns. It is estimated that between 75% and 90% of primary care physician visits are caused by stress-related illnesses (2). Cardiovascular disease, obesity, diabetes, depression, anxiety, immune system suppression, headaches, back and neck pain, and sleep problems are some of the health problems associated with stress (4,8). These conditions are some of the most burdensome health problems in the United States based on health care costs, the number of people affected, and the impact on individual lives. Extreme levels of stress were reported by 22% of respondents from the 2011 Stress in America™ survey, and 39% reported that their level of stress had increased during the past year (3). More than 80% of the survey respondents at the WorldatWork Conference in 2012 reported that stress moderately or significantly contributed to their health care costs (6).
According to studies, people with Gamma brainwaves that hit a frequency of 40 Hz posses a higher I.Q. Would you like to increase your level of intelligence? Make sure that your brain produces abundant Gamma brainwaves (via exercise, meditation, brainwave entrainment). With regular production, you’ll be able to readily solve problems, have a clearer understanding of things, and process information more quickly.

Was wondering if you could give me a little more background on the suggested 2hr usage limit. I’m in LOVE with these CDs. Spent two months 2-3 times per day with ‘Equisync II’, and earlier this week shifted over to ‘Equisync III’. Since moving into Equisync III, I’m naturally drawn in my morning sitting to about 1 1/2 hrs with the tracks looping through my iPod. Then I sit again at night. I feel great. So is the 2hrs suggested for people with little prior meditative experience, is it a precaution for those whose psyche may be more fragile and prone to getting uber spacey and not managing their lives?
I just want to write another email about how happy I am with your product, Equisync I, or the alpha waves. I dont think I have ever been so relaxed in my entire life. When I get sink into the state, it feels like a huge electric blanket is pulsing through my body, a really warm, swirling feeling, and my mind is very inactive. I am a meditator without your product. I am able to enter witness consciousness fairly easy on my own sometimes during the day in activity. This isnt the heart oriented feeling of bliss or expansion, but it still is great for the body/mind. This is great though, as it seems to fully relax me. I still believe, that for one to really see dramatic results, meditation should be a way of life. Considering how many of us, spend most of our day unconscious, not aware of the witness or the self, an hour a day is better than nothing, but would be best to be proactive during the day, watching. Keep up the great work and thank you for your product and research.
I believe that there is a frequency at which a brain functions, they can vary depending on circadian rhythm or other factors. You can check the various effects on the brain caused by varying frequencies. Check this link -> Binaural beats. When we expose our brain to isochronic/binaural beats, it has a resonating effect on the brain, i.e. the brain starts to alter its frequency in order to synchronise with the tone. Once the specific frequency is achieved, you will have the desired effect (depending on the specific frequency you are trying to induce).
This is a brainwave meditation MP3 that will stimulate the Theta state of mind, allowing you to relax DEEPLY. On the surface you will hear a gentle rain and deep string sounds… underneath the MP3 uses a complex protocol which alternates stimulation between the left and right ears, and uses several ramps to reach the target brainwave frequency. It is useful for hyperactive people who have problems relaxing or entering trance like states.
Magic happens with this amazingly deep meditation MP3. Delta stimulation can be very hypnotic, and Sub-Delta (0 – 1 Hz) in particular is theorized to have soothing effects on the limbic system, such as the amygdala and hypothalamus which themselves operate at delta frequencies. These neural structures are associated with emotions, fear, the fight-or-flight response, blood pressure, tension and more. Many people have found success using Delta as an aid in meditation. Using sub-delta to sooth these structures has resulted in amazing success helping health conditions such as fibromyalgia, chronic pain and hypertension (high blood pressure). Its soothing effects on the limbic system may shed some light on this.
“I have been using them as often as I could over the past week. During this time, I have undertaken editing a book, and plenty of reading, amongst other things. To help, I used the 'Razor Sharp' audio. It was like I was in my own little bubble of concentration. Amazing! I will continue to use this one every time I am working on something at the computer.