Hold on to your taxes, as forget world war, unless countries (not all) come up with a solution to social care of the elderly, it will be this that collapses a country.
http://www.bbc.co.uk/news/health-39040146
South Korean women will be the first in the world to have an average life expectancy above 90, a study suggests.
Imperial College London and the World Health Organization analysed lifespans in 35 industrialised countries.
It predicted all would see people living longer in 2030 and the gap between men and women would start to close in most countries.
The researchers said the findings posed big challenges for pensions and care for elderly people.
The US also performs poorly and is on course to have the lowest life expectancy of rich countries by 2030.
The study predicts an average age of 80 for men and 83 for women - roughly the same state Mexico and Croatia will have achieved.
"They are almost opposite of South Korea," added Prof Ezzati.
"[Society in the US is] very unequal to an extent the whole national performance is affected - it is the only country without universal health insurance.
http://www.bbc.co.uk/news/health-39040146