The hectic pace of the big cities, the spend much time on public transport to get to their jobs, or even worse to spend several hours in the car of the day bottled in traffic for urban journeys, this lifestyle would favor the onset of diabetes in fact, type 2 by a recent study which involved a sample of residents in five major cities showed that a body weakened by stress, noise and commuting would cause the pancreas to stop producing insulin or at least to produce a quantity of less than that required by determining the onset of diabetes. This study is a response to the sharp increase of diabetics has registered in recent years in the inhabitants of big cities. In light of this important study it is hoped that governments take into account the working conditions of residents in big cities.