THERE has been a wave of presidential demises in Africa over the past few years; since 2008, eleven African leaders have died in office, including this week’s death of Zambian president Michael Sata. 2012 was the worst, with four sitting African leaders dying in that year alone.By contrast, in that same time frame, just five heads of state or government have died in office in the rest of the world combined –Lech Kaczy?ski of Poland and David Thomson of Barbados in 2010, Kim Jong-Il of North Korea in 2011, and Hugo Chávez of Venezuela and Zillur Rahman of Bangladesh last year.

via Why African leaders should seek treatment at home, and serve more than 8 years – predicting presidential demise | Mail & Guardian Africa.