I'm looking forward to reading this! My in-laws have a family joke about having a hereditary "humming disease" because everyone in the family unconsciously hums a lot! It's usually cute and funny, and it sounds like it is likely a self-regulating practice as well!
I'm a huge fan of Jump + Pray, especially this post about joy and why humming is good for the vagus nerve:
https://jumpandpray.substack.com/p/your-joy-is-essential
I'm looking forward to reading this! My in-laws have a family joke about having a hereditary "humming disease" because everyone in the family unconsciously hums a lot! It's usually cute and funny, and it sounds like it is likely a self-regulating practice as well!