When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
For example one ear receives a signal of 100hz whilst the other ear receives 105hz. The brain cancels out the difference between the frequencies, in this case 105hz - 100hz = 5hz. 5hz is a low level theta frequency.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.