KTVA is all about maintaining good vocal health, whilst going through the massive improvements when working the program. Certain things are a big NO, and you just have to avoid them. The worst thing that comes to mind is simple over-singing. Too much volume, too much air, and eventually end up being a little hoarse, or very hoarse. Over time this will become an even larger issue, and will result in damage.
After my exercises and singing, i can usually feel that i have worked out. And i might have a feeling in my throat. It doesn't really hurt, but i can feel that certain areas around my throat were used. Is it bad that you feel something in your throat? It's difficult to describe. I'd like to clarify that i do not over-sing, and i never become hoarse anymore from singing. Those days are long gone, thanks KTVA! The only thing i can imagine, is that it might be from the times that i kind of 'pinch' the top notes more. And i am then talking about the highest notes. Because of singing an 'ih' too high, or just adding that extra little to make sure you hit the note. On those notes, i can feel a little more throat muscle creep in, but not much. Overal, everything is fine, open throat technique. That, for sure is my basis technique.
One more thing: i can keep singing for a long time these days, without losing range or anything. Tired i can become, but it's not like my voice exponentially deteriorates during singing sessions!
So another question is: would something like i am experiencing now and then (the aforementioned) be detrimental to my vocal health over time? For now, i am only improving my vocals, and things are really going the way i want now. That is absolutely amazing. I would just like to make sure. If you need a little more info, i can provide that.
Then finally, what are the most common problems that cause voices to deteriorate over time? Many singers have that issue, including famous ones.
Some ramblings in this post, but i think you get the message.
All the best,