In terms of health and life expectancy between men and women, what is "the great equalizer"?

Steven pinker states that an important difference exists between men and women in:

The graphic organizer includes facts about germany and japan. a student created this organizer for a document-based essay on the expansion of totalitarian states. which fact could be added to column a? results of german elections in the 1930s employment statistics in nazi germany germany’s invasions of poland and france a list of domestic laws passed in germany

Paris, london, new york, and tokyo are all significant because