Let's say one manages to fix all his health issues, minimize stressors and all that.
Have you ever seen anyone who had regrown his hairline without super strong hormonal regimens? Highly doubt that.
Yes I have, many many times. Whether it's in the literature, or in case examples I've seen on the web, I've probably come around dozens of stories with full regrowth of hair without any minoxidil or finasteride. And no I won't spoon feed you success stories.
I've researched this for a long time, and I have a feeling no matter what I show you're not going to be receptive to it.