“…Spouses in turn shape both their own and their partner’s health trajectories, and these influences may become even stronger as couples age [24,43]. Supporting these perspectives, prior work demonstrates within-couple interrelations in depressed mood along with a range of other health indicators including physical activity, functional limitations, and sleep duration [3,11,24,47,54,59,67]. Likewise, spouses’ greater pain intensity has been linked to their partner’s poorer psychological well-being in cross-sectional [15,36,63,66] and longitudinal [4,56,71] research.…”