How you should be saving for retirement in your 30s, 40s, and 50s in South Africa Staff Writer 1 month ago Life expectancy has been increasing rapidly across the globe, which enhances the growing risk of outliving your retirement savings. According to the World Economic Forum, individuals born in 2017 are expected to live up to approaching 100 years. The obvious consequence of this is that it would be necessary to have enough savings to last more than 30 years after retirement.