Was just reading an article in MoneyWeek which advises investors to get out of Chinese investments such as stocks.
The reason being Chinas' ageing population with no pensions provisions, it's one child policy means there are not enough workers to support the old, and it's worsening pollution accelerating health problems amongst it's population.
Net result is that China will not be able to sustain it's economic growth at current levels. Not a bad thing when it comes to endangered speices used as cures for erectile dysfunction in the rich.
As for heavy metal poisons in your system you can get 95% of it out with carbon injections directly into the liver where they accumulate. The carbon binds to the heavy metals and your system then excretes it. Not cheap though, about £2000 in Europe for a course of 6 injections and a blood test or two.
Shags