You may have seen threads of me b***hing about my braces. But something I noticed is that I unintentionally increased space for my upper wisdom teeth. I have this habit of feeling how much space I have for my wisdom teeth, because I really desire to have them. Before braces, I could barely fit half of the tip the tongue. 2 months and some weeks after, I can fit the entire thing. 

I suspect that this happened because my teeth are making light contact, barely having the cusps clasp eachother. There is no "drag." 

Another thing that happened was that my eyes became symmetrical. I did take a photo and it turned out to be true. Sadly, my jaw didn't recieve the same effect and it's still significantly asymmetrical. This has already been documented, your eye area becomes symmetrical and even your eyebrows. I don't remember the thread.

Summary: Light contact between your teeth and mewing leads to your maxilla shifting. Maxillary advancement changes how symmetrical your eyes and even your face is.

Hopefully, this is interesting and if not, sorry.