The Average Japanese woman can except to live to be 84. The average Botswanan will reach just 39.
If you were born in the developed world, there is a good chance you will look forward to a longer life than your parents – and your children will live longer still. The average human lifespan has doubled over the past 200 years, and in most countries the trend continues. In the developed and wealthy world, science has managed to eradicate previously devastating diseases and deliver us a quality of life that our ancestors - living the life Thomas Hobbes famously described as ‘nasty, brutish and short’ – would never have dared to hope for. We may not yet have the key to immortality, but we can have a good shot at it.
Source: Jessica Williams 50 Facts that should change the world