The frequency of 337Hz is said to be the frequency associated with stimulating the more normalized blood circulation system.<br /><br />Just listening to this BGM will improve blood circulation and support your aging care.<br /><br />Please listen repeatedly as needed.<br /><br />It is a 4K image.<br /><br />■ Please give us a Good! and follow us.<br /><br />Healing music & video that heals you.<br /><br />Enjoy a healing time that makes you happy, such as stress relief, insomnia countermeasures, and recovery from brain fatigue with images that are kind to the mind and body and BGM.<br /><br />* This video does not guarantee the effect.<br />