I have just recently been emotionally able to move past Heroes when I do rewatches. I had completely forgotten what Seasons 8- 10 had to offer (which in my opinion aren’t nearly as good), but I am glad I did because there are some gems in there.
Maybe his mustache ate him because that is one ugly ‘stache
One thought is, we know that the Alterans (Ancients) had healing powers because of their brain use capacity. What if the Go’auld and Tok’ra are able to stimulate the same parts of the brain to achieve healing? Another thought is, they can somehow use the naquadah as some kind of healing element the same way they use it to power their other technology.