Informe sobre el Programa REPRO de la Unión Europea, en el que han colaborado nueve institutos de investigación de otros tantos países: Austria, Francia, Noruega, Holanda, Italia, Reino Unido, Alemania, Bulgaria y Hungría.
Caregiving within and beyond the family is associated with lower mortality for the caregiver: A prospective study
Grandparenting has been proposed as an ultimate evolutionary mechanism that has contributed to the increase in human life expectancy.