Yesterday, an international report on Alzheimer's Disease was published. The study found that the global cost of dementia will likely exceed $604 billion this year. The European researchers also estimate about 35 million people have dementia worldwide. They said that figure is likely to double every 20 years, to nearly 66 million in 2030 and 115 million in 2050.
Link to the report: http://www.alz.co.uk/research/worldreport/
