A central question of interdisciplinary health research is whether the life years gained through increasing life expectancy are primarily spent in good or poor health. Two opposing models have been proposed: "expansion of morbidity" and "compression of morbidity". Existing research based on...

The recently presented CroHaM hypothesis says (1) that longitudinal health domain-specific expansion and compression effects depend primarily on the health domains' mortality risk and (2) that these effects exist equivalently in the cross-sectional context, affecting differences in healthy life...