[shoalin]

I hope this is the case and not the fact that the boy has been using gear.

Myostatin (Growth and Differentiation Factor 8 or GDF-8) gene limits the development of muscle tissue growth or higher concentrated amount cause less developed muscles. In the skeletal muscle cells, myostatin protein is produced. The protein circulates in the blood and travels directly to muscle tissue, upon slowing down the development of muscle stem cells (A type of cell that has the ability to either divide to create more stem cells or produce a cell a type, for unlimited source of adult cells in the bone, muscle or blood). In 1997, geneticists McPherron and Se-Jin Lee discovered and produced a strain of mutant mice that lack the myostatin gene. These mice developed twice the normal strength ("Mighty Mice"). The gene associated with myostatin has been found in the genomes (Differences in the sequence of DNA from one person to the next.) of humans, mice and zebrafish.

In some rare cases, a mutated myostatin gene is inherited in humans and animals In 2004 German boy was diagnosed mutated myostatin gene inherited from each parent, making him considerably stronger than his peers. Reported cases of cattle born having an inactive myostatin gene, referred to as Belgian Blue cattle or "monster cows" (Critics call Belgian Blues). The cattle are hefty, very meaty and lean or double muscle cattle. They are often unable to give birth without caesarian section.