The famous Puerto Rico islands which are known to have been exporting drugs to many countries have been labelled as the Zombie Islands. Want to know why? It is because the drugs that were originally used to be exported are now being consumed by the inhabitants of the island themselves. This makes the people stoop and lose consciousness of their surroundings for at least six hours at a stretch, making them look like a zombie. To know more about the Zombie walkers on the Zombie Island, their behavior and the effects of consuming drugs, do take a look at this unusual article.
http://www.huffingtonpost.com/2013/01/04/puerto-rico-drug-addiction_n_2411317.html