https://www.youtube.com/watch?v=jhqTLOnzHYw This video from the Alzheimer's Society shared in January 2012, talks about the amyloid and tau proteins involved in the development of Alzheimer's disease. Steps taken by amyloid beta to enter and kill nerve cells seen in study. Find out more. An estimated 400,000 people in the UK have Alzheimer's disease; it is the most common and best-understood form of dementia. More than half of Alzheimer's patients aged 90 or older have psychotropic drugs. Read more here. Alzheimer's News Today is strictly a news and information website about the disease. It does not provide medical advice, diagnosis or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.