The livelihoods of those who live on Indian Reservations in the United States are very low. On Pine Ridge Indian Reservation for example, the second largest rez in the country, the average family income in $3,700 a year, making in the poorest county in the nation.Unemployment hangs around 80%, and life expectancy is 48 for men and 52 for women (the lowest in the U.S). About half the people over age 40 have diabetes, tuberculosis is common and the alcoholism rate is the highest in the United States.Adolescent suicide is four times the national average. Many of the families have no electricity, telephone, running water, or sewer. Many families use wood stoves to heat their homes.The infant mortality rate is five times the United States national average.