42 Hz is in the gamma frequency range and this can particularly help to stimulate the brain and can also be called learning frequency, as it can improve cognitive abilities and help to process information better.
When listening to frequencies, you should always drink enough water! The frequencies can be listened with speakers as well as with earphones.
Important Disclaimer: Frequencies should not replace medical treatment!
My Youtube Channel: https://www.youtube.com/@frequencymind
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