These waves are fast with high frequencies between 10-15 hertz which are associated with anxiety. Alpha brainwaves are when you are alert but still relaxed. With hertz between 9-14, alpha waves are associated with meditation and to be creative.
Especially dangerous is infrasound at the frequency of 7 Hz, since this sound, generating frequencies, close to characteristic frequencies of the organs of our body, may disturb the heart or brain activity. Machines, natural sources storms, earthquakes, hurricanes, etc. generate infrasound.
Despite the advent of numerous additional research studies on RF fields and health, the only established adverse health effects associated with RF field exposures in the frequency range from 3 kHz to 300 GHz relate to the occurrence of tissue heating and nerve stimulation (NS) from short-term (acute) exposures.
Now, 19Hz is the resonant frequency of the eyeball. Sound of sufficient amplitude deforms the eyeball very slightly and pushes on the retina, activating the rods and cones by pressure rather than by light and causing these visual distortions.
Humans cannot hear sounds below 20 Hz or above 20,000 Hz because when sound waves travel too slowly or too quickly, our body can't translate that motion into signals our brains understand.
Standing waves were observed for flicker frequencies in the range 8–18 Hz, which we interpret as hallucinatory.
Measured in hertz (Hz), a healthy ear can hear a wide range of frequencies, from very low (20 Hz) to very high (20,000 Hz).
According to the current study, sound waves with 528 Hz frequency in 100 dB intensity induce testosterone production in brain by enhancing StAR and SF-1 and reducing P450 aromatase gene expression. Frequency of 528 Hz also reduces total concentration of reactive oxidative species in brain tissue.
Gamma: 30-100 Hz.
With a higher frequency than beta, these brain waves help in: Increased cognitive enhancement. Attention to detail, helping in memory recall. A different way of thinking, which is a sign of creativity.
However, the 432 Hz was found to be more effective in reducing the anxiety.
As hearing loss progresses, the rate of hearing loss decreases. Loss is always greater at the frequencies 3000-6000 Hz than at 500-2000 Hz. Loss is usually greatest at 4000 Hz.
The most dangerous frequency is at the median alpha-rhythm frequencies of the brain, 7 hz. This is also the resonant frequency of the body's organs.
Metaphorically speaking, 10 Hz is the natural idle speed of the brain's “engine” at rest, and lower speeds lead to “sputtering” in sensorimotor function (since sensorimotor stimuli cannot facilitate perceptual processing optimally at frequencies <10 Hz).
ALPHA (8-12 Hz)
Alpha waves are those between 8 and 12(Hz). Alpha waves will peak around 10Hz. Good healthy alpha production promotes mental resourcefulness, aids in the ability to mentally coordinate, enhances overall sense of relaxation and fatigue.
For example, exposure to 4000 Hz produced damage in a restricted region of the cochlea and hearing loss for a relatively narrow range of frequencies; exposure to 125 Hz produced wide-spread inner ear damage and hearing loss throughout the frequency range 125 to 6000 Hz.
High frequency sound causes two types of health effects: on the one hand objective health effects such as hearing loss (in case of protracted exposure) and on the other hand subjective effects which may already occur after a few minutes: headache, tinnitus, fatigue, dizziness and nausea.
Researchers claim that they feel calmer, happier and more relaxed when playing and listening at 432 Hz. Continuously listening music based on 440 Hz blocks the energy whereas by lowering the pitch by just 8 Hz makes us more joyful & relaxed.
Listening to 40-Hz binaural beat can induce gamma oscillation in several brain areas. Those induced areas are related to auditory response of the brain. Moreover, beta and high beta oscillations are also induced by gamma oscillation in several associated areas, particularly frontal region.
Notably, 80 Hz tACS increased WM capacity on both the left and right visual hemifields, while previous tACS studies only reported the effects of tACS on contralateral hemifields.
The 852 Hz is the 8th tone in the healing solfeggio set of 9 tuning forks, and has a high pitch tone and nice vibration. It is produced and precisely calibrated in the US by Riverbank. 852 Hz is not a note in the Western musical scale- it is a wonderful tool for wellness and mindfulness.
528Hz resonates with the Solar Plexus Chakra, our third energy center. Known as the frequency of Love, it restores human consciousness & brings about harmony and balance in life. It also helps create self-love and can ease illness, hatred and fear in the world.
6 Hz beat enhances all area of the brain within 10 minutes. 8 Hz and 25 Hz beats have no clearly responses while 40 Hz beat enhances the responses in frontal lobe. These brain responses can be used for brain modulation application to induce the brain activity in further studies.
The hearing ability of a dog is dependent on its breed and age. However, the range of hearing is approximately 40 Hz to 60 kHz, which is much greater than that of humans.
Women don't always have a leg up when it comes to hearing. In fact, while they generally have better hearing when it comes to frequencies above 2,000 Hz, they're less able to hear frequencies of 1,000 to 2,000 Hz.
During a conversation, the fundamental frequency of a typical adult man ranges from 80 to 180 Hz and that of a typical adult woman from 165 to 255 Hz.