Further research has shown that this disease is commonly found in people 65 years and older, touching 5 million lives all over the world. There is a number of symptoms such as mental decline, difficulty thinking and understanding, confusion in the evening hours, delusion, disorientation, forgetfulness, making things up, mental confusion, difficulty concentrating, inability to create new memories, inability to recognise common things, or to do simple maths. Behavioural changes such as aggression, agitation, difficulty with self care, irritability, meaningless repetition of own words, personality changes, restlessness, lack of restraint, or wandering and getting lost. Mood changes such as, anger, apathy, general discontent, loneliness, or mood swings. Psychological; depression, hallucination, or paranoia, last but not least is their inability to combine muscle movements, they jumble speech, or they have loss of appetite. Alzheimers disease is typically the reason for dementia existence as it describes more or less the same symptoms and 75% people suffers from dementia.
According to studies in 2000, statistics of Dementia in the elderly, globally, were roughly calculated fr
om 950 2050. They used different sources to investigate the value and sensitivity on Dementia in the elderly. In 2000, calculations were made on 25 million people over the world with dementia and according to statistics (46%) lived in Asia, 30% lived in Europe, and 2% in North America. An estimation was made that approximately 6.% of people aged 65 years and older are experiencing dementia and about fifty-two percent lived in low income countries. Above all are 59% women and people globally about 0.5% and new cases in 2000 were calculated at about 4.6 million with dementia. It has been predicted that a large number of elderly demented people will be increasing in 2000 from 25million to 63 million in 2030. Forty one million people in low income countries to 4 million predicted in 2050 and eighty four million in low income countries and a definitive increase will follow in the near future and most of the demented elderly lives in low income countries. According to research, new tests have been done over a few decades on new medication to determine how it will affect AD sufferers lives and the strategies that needs to be followed according their health benefits.