Dementia cost of illness: a systematic literature review. How nutraceutical products can help NHS to sustain dementia’s costs

Introduction

The progressive aging of the population is today a challenge for modern society and health systems. Epidemiological change is causing new social and health problems that have never been addressed before. The number of people over 60 years of age has now reached 900 million worldwide, or 12% of the population, with an estimated 2.4 billion in 2050, or 21% of the total population.1 Many of these individuals are already suffering from chronic degenerative diseases, dementia being one of the most serious and disabling. Dementia is a syndrome characterized by acquired impairment in one or more functions, such as memory, attention, orientation, language, thinking, behavior and ability to perform everyday activities.

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