The article by Ann M. Weber and Gary L. Darmstadt reviews global gender inequalities in life expectancy by comparing life expectancy with attainable potential. Comparing life expectancy with attainable life expectancy reveals how sex disadvantage shifts with age, place and time. Inequality is reframed as unrealized potential due to social and structural constraints, not differences in biology. The authors discuss how this comparison transforms inequality into unrealized potential caused by social and structural factors. The findings show that women are more disadvantaged than men in life expectancy at various ages in 13%-33% of countries, despite longer life expectancy. Men are more disadvantaged in 33% - 68% of countries. Disadvantage is not fixed but depends on country, age group and context, which helps to design targeted health programs.[1][2]