Fish as an example

Any here with longish hair, you carry there a chronological record of your heavy-metals exposure. Chemistry geeks can sort that out. If you decide to chop it all off, save 50 strands and label the scalp (root) end and the date of removal.

Other than that, there are very few 'books we can read'. Bone lamina store some elements (not others) and it is always being rebuilt. A bit too frisky for historical purposes.

I began working recently with a Chinese lady with 1-meter hair. That's like 20 years. I advised her do not change hair styles without sampling as above.

Are you doing anything about the arsenic, FL? There may be no reason to get excited so far. Maybe one of our medical doctors will join in with a valuable opinion. AFAIK the only major source of As to humans is rice and it's not just rice from Asia. You ricey likey?

 

I did eat a big bowl of rice for breakfast nyuck nyuck.