Your hair turns grey because the Neuromelanin, that would otherwise give your hair pigment, is instead being bound to heavy metals?
From Wikipedia https://en.wikipedia.org/wiki/Melanin
"NeuromelaninNeuromelanin (NM) is a dark polymer pigment produced in specific populations of catecholaminergic neurons in the brain. Humans have the largest amount of NM, while it is in lesser amount in other non-human primates, and totally absent in other species. However, the biological function remains unknown, although human NM has been shown to efficiently bind transition metals such as iron, as well as other potentially toxic molecules. Therefore, it may play crucial roles in apoptosis and the related Parkinson's disease."
Melanin is synthesized in your body by Tyrosine.
But this theory ties into another theory of mine very well. We know that people who receive chemotherapy have their hair fall out. Chemotherapy being administered radioactive metal?
The initial question that got this idea going was, "Can undetectable amounts of heavy metal cause greying of the hair?" "What metal causes the pigment in your hair?" Also the fact that I noticed that when I work with sanding and grinding certain metals, and it gets in the skin of my fingers, I get temporary arthritis come on very strong!
Thomas Paul Murphy
originally published on 04 29 2016 at: www.themilwaukeeandwisconsinnews.blogspot.com