In India, a so-called low-caste woman can expect to live almost 15 years less than a so-called upper-caste woman. Suggesting that this is an international phenomenon, a just-released Oxfam report says, Life expectancy in one of the poorest parts of London is six years less than it is in one of the capital’s richest neighbourhoods, just a few miles away. Life expectancy in the richest parts of Sao Paulo, Brazil, is 79 years. In one of the poorest areas of the city it is 54 years.