Nowadays, there is a large gap between the rich and the poor regarding access to health services, both between different countries and within the same nation. Life expectancy is shorter and the diseases more widespread as it goes down in the social ladder.
The lack of a job, access to precarious and unhealthy jobs, lack of education, belonging to a minority and living in a violent context are factors that heavily affect the state of psychophysical health of every individual and every community.