Man regner med, at en fjerdedel, dvs. 25%, af de mennesker, der bliver over 85 år - og de begynder at blive mange - vil blive ramt af Alzheimers sygdom.
It is estimated that of those aged 85 and over - and we are starting to see many 85 year-olds - one elderly person in 4, that is 25%, will be suffering from Alzheimer's disease.