We take a look at some common causes of cancers and the facts behind them . 7.9 million people died from cancer in 2007 , according to the WHO . Projections suggest cancer has overcome heart disease as the leading cause of death .
We take a look at some common types of cancers and the facts behind them . 7.9 million people died from cancer in 2007 , according to the WHO . Projections say cancer could overcome heart disease as the leading cause of death .