I believe polyvagal theory is really a concept worth looking into for mental health. The work of Steven Porges has promoted the practice of obtaining feelings of safety through manipulating the polyvagal nerve. It’s simple and I have attached a brief article as well as a simple YouTube video that explains the concept! Enjoy!
Steven Porges: https://www.frontiersin.org/journals/integrative-neuroscience/articles/10.3389/fnint.2022.871227/full
Polyvagal theory video: https://www.youtube.com/watch?v=OeokFxnhGQo&ab_channel=SukieBaxter
Interviews with Steven Porges: https://www.youtube.com/watch?v=ivLEAlhBHPM&ab_channel=meg-rottweil
and: https://www.youtube.com/watch?v=ccKfoKZAwvM&pp=ygUWc3RlcGhlbiBwb3JnZXMgYW54aWV0eQ%3D%3D
