This effect has been dubbed "blue health." Scientists have offered a number of explanations for these benefits. Being near water often means we do more physical activity, while natural ...

More information: Débora Barroggi Constantino et al, The bright and dark side of blue-enriched light on sleep and activity in older adults, GeroScience (2025). DOI: 10.1007/s11357-025-01506-y ...