Rumor that China has been biologically re-engineering the chromosomes (DNS patterns) of it's athletes, both male and female. Starting in early childhood for the more natural potentially gifted and physically tested kids (at a very young age). So that drugs will not be so much an issue when drug test are administered , for these prime elite performing Chinese, to set records in the Olympic games. &guy, stronger, faster, quicker and better all around.
Chromosome surgery, and DNA/RNA genetic displacement, is becoming very advanced of late. Just a rumor going around the sports world..maybe some grounds for investigations, though can never really be proved.