The number of people with dementia across the world is set to double every 20 years, according to new research.The study found a new case of dementia arises every seven seconds and experts say the illness is a “ticking time bomb” for the governments around the globe. Its estimates that 24.3 million people currently have dementia, with 4.6 million new cases being diagnosed annually.By 2040 the number will have risen to 81.1 million.The report, which has been produced for Alzheimer’s Disease International (ADI) and published in the Lancet, comes 100 years after the first description of Alzheimer’s disease.
