Are you looking at me?

[xoxoxoBruce]

There is a human boy in Germany that has the same condition.
from 3 years ago;

Genetic mutation creates super strong toddler
The Associated Press
Somewhere in Germany is a baby Superman, born in Berlin with bulging arm and leg muscles. Not yet 5, he can hold seven-pound weights with arms extended, something many adults cannot do. He has muscles twice the size of other kids his age and half their body fat.

Come to think of it... it doesn't say if he was born in Brazil or not.