5000 Hz is a typical frequency that can show effects on the whole body and can be used against various diseases. It has also proven useful to stimulate the brain and improve memory performance, this frequency has been researched for a relatively long time and the first effects should be noticeable in the first few minutes.
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!
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