There is a compelling business case for gender diversity and inclusion. Yet women still aren’t proportionally represented at higher levels of business. Where do they go? They go to another employer, disengage and quit climbing or start their own businesses. The causes are both “push factors” and “pull factors.” While women’s role in the family is an important push factor, businesses should focus on push factors, including “invisible mind-sets” that cause women to disengage or leave. The root causes of these push factors are the “comfort principle” and “unconscious preferences.” Understanding the causes of disengagement can enable the solution, which includes bringing to conscious awareness those invisible mind-sets.