A rough estimation of the World Health Organization (WHO) calculated the total amount of people affected by Alzheimer's disease would be about 25 million worldwide by 2025 , actual figures estimate that today, 2012, that amount has reached the incredible figure of 33.9 million! people affected by Alzheimer's disease , and foreseen to triple in the coming 40 years. In spite Alzheimer's disease can occur at any age, it is very seldom that cases are reported between the age of 40 to 50 years, and chances to get affected by Alzheimer's disease are increasing between 60 and 65 years old.
Many lines of investigation to prevent and even treat Alzheimer's disease are open, some of them involving natural molecules and phytochemicals found in herbs and plants. But, what are the past, present and future lines of investigation on the field Alzheimer's disease involving the use of these natural molecules and phytochemicals found in herbs and plants? This article covers the principle lines of investigation involving the latests findings on active constituents found in herbs and plants.