Dementia Overview

Dementia is not a single disease, but a broad term used to describe a range of conditions that affect cognition, behavior, communication, and the ability to engage in everyday activities. As the population ages, rehabilitation professionals are increasingly working with individuals living with dementia across all care settings.

Despite its prevalence, dementia is often misunderstood in rehabilitation contexts. It is frequently viewed as a barrier to therapy rather than a condition that requires adaptation in how care is delivered.

Yet individuals living with dementia retain strengths, preferences, and the capacity for participation. With the right approach, rehabilitation can support mobility, communication, daily function, and quality of life throughout the course of the condition.

Understanding the different types of dementia — and how they affect cognition, behavior, and function — helps clinicians tailor interventions, communicate effectively, and design care that is both realistic and meaningful.

While each type of dementia presents differently, all share one essential truth: individuals continue to live, move, communicate, and engage in meaningful activities throughout the progression of the condition.

Rehabilitation plays a critical role in supporting these abilities. By understanding how dementia affects cognition, behavior, and function — and by adapting care accordingly — clinicians can help individuals remain active participants in their daily lives.

A strength-based, person-centered approach allows rehabilitation to shift from focusing solely on decline to supporting participation, autonomy, and quality of life.

This understanding forms the foundation of the LEAD™ Framework for Rehabilitation Professionals and informs how rehabilitation professionals communicate, design interventions, and support individuals living with dementia and their care partners.