What is Cognitions

This chapter describes how the world population is ageing with the advances in medical health technology. Longevity allows many humans to live beyond the sixth and seventh decade. With this comes the added medical co-morbidity that one sees with healthy ageing. Mild cognitive impairment (MCI) includes a heterogeneous group of persons who have declining deficits in cognitions with minimal impairment in doing complex activities with no deficits in daily activities and in the absence of dementia. The purpose of this chapter is to acquaint the readers with the concept of Mild Cognitive Impairment and the evolution of the diagnosis to its current nosological status. It will further elaborate on the assessment and management of patients with MCI.