 The study reviews existing literature on spatial navigation and postural control in healthy elderly individuals and Alzheimer's disease patients. It focuses on the role of the vestibular system in these processes and discusses the implications of vestibular deficiencies in both groups. The authors conclude that further investigation into the vestibular system is needed to better understand the causes of spatial and postural deficits in both healthy aging and Alzheimer's disease. This article was authored by Maria K. Chepeshiva.