Over the past decade, the concept of frailty in the health and social fields has undergone a profound transformation, moving away from a purely deficit vision linked to age and disease to embrace a more dynamic and multidimensional interpretation. This change is intrinsically linked to the new concept of health, no longer understood as the simple absence of pathology, but as the ability of an individual to adapt and self-manage their living conditions in the face of physical, psychological and social challenges.

This innovative perspective has shifted the focus from the mere treatment of diseases ("cure") to taking care of the person in their entirety ("care"), enhancing their residual resources and recovery potential. Frailty, in this new framework, emerges as a reduced capacity for adaptation and less resilience to stressors, which increases the risk of adverse health outcomes, such as disability, hospitalization and mortality.