Working long hours is killing hundreds of thousands of people a year through stroke and heart disease, according to the World Health Organization (WHO).
Mandatory Credit:	Timothy A. Clary/AFP/Getty Images

Working long hours is killing hundreds of thousands of people a year through stroke and heart disease, according to the World Health Organization (WHO).
Mandatory Credit: Timothy A. Clary/AFP/Getty Images

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Long working hours are killing hundreds of thousands of people a year, WHO says

Working long hours is killing hundreds of thousands of people a year through stroke and heart disease, according to the World Health Organization (WHO).