Born and grow up in a large urban area is a risk factor for psychological disorders such as anxiety and mood disorders also commuting and the place where you live plays a significant role in the growth of diabetes. The frenetic pace of the large cities, spending much time on public transport to get to their jobs, or even worse to spend in the car several hours bottled in the middle of the day to the urban traffic movements, this lifestyle would favor the onset of diabetes type 2. in fact, as a recent study involving a representative sample of residents in five cities, it showed that an organism weakened by stress of noise and commuting would cause the pancreas to produce insulin in a quantity of less than that required by determining the onset of diabetes. This study is a response to the sharp increase of diabetics who have registered in recent years among residents of large cities. In light of this important study it is hoped that governments take into account the employment status of residents in big cities. Moreover, another risk factor for those who live in a big city certainly is the noise that reached the truly unacceptable levels which obviously causes negative effects on the quality of sleep is an extremely important factor in the morale and welfare of the people. Especially traffic noise, which has a strong influence on the nervous system, has been recognized as the architect known worldwide as a cause of stress that can become cronico.Purtroppo is not easy to fight noise pollution, the best thing would be to move away from city, but small measures can improve the situation. Such as double glazing or panels or sound-absorbing sheaths to be applied to walls and floors, or in extreme situations, especially before going to bed, use of acoustic earplugs to soften ambient noise because it ‘s not heard He never sleeps and feels everything, even in his sleep. The brain works incessantly, day and night. It is for this reason that the noise at night is considered very harmful, because it affects the body even when we realize it.