Women have long faced more challenges than men while making their way to the uppermost ranks of prominent companies. And it’s harder for them to hold on to that top spot. Consider that CVS the healthcare company,

Karen Lynch frequently spoke of how her mother's death from suicide and her aunt's death from cancer shaped her health care vision

CVS Health Chief Executive Officer Karen Lynch has stepped down and will be replaced by David Joyner, who runs the company's pharmacy benefit firm, Caremark.