I have an endless internal dialogue, and I let it externalize to the point of practicing what I'm going to say out loud. Sometimes it helps me be more articulate, practice jokes, or even technical explanations. Other times it helps reason logically. Sometimes it's not helpful at all.
I have no idea how healthy it is but it's only when I'm alone.
I talk to myself aloud a lot as well. I almost never have any dialog entirely in my mind. I am so used to talking to myself aloud that I have to consciously internalize it if I'm not alone, and I find it very challenging.
I have no idea how healthy it is but it's only when I'm alone.