Iron is an underrated factor in aging It's also underrated, in my opinion, in many chronic diseases, including heart disease, cancer, type 2 diabetes, Alzheimer's, Parkinson's, and others. Many scientists and doctors have done solid research on the relations between iron, aging, and disease, but their studies are generally obscure; the topic of iron and disease is generally unrecognized by both mainstream medicine and the public. Iron deficiency is of course widely appreciated as a cause of illness, excess iron is not. Iron deficiency is mainly concentrated in discrete groups: women of childbearing age, and children. The rest of us, men and older women, are more likely to suffer from excess iron. They are also, except in extreme cases such as hemochromatosis, unlikely to know it. I've spent a fair amount of time on this topic over the last 12 years, and have written a book (2016) and a peer-reviewed paper in the journal Aging (2021). If you want to know more on the link between iron, aging, and disease, you can read both my book and paper for free, no email required, here: dumpingiron.com