https://www.youtube.com/watch?v=c0DaIHWTxHw This video from AP Digital Products takes viewers on a 360º virtual reality tour of the brain. The film shows how neurons are linked by thousands of pathways in the brain that control thought, emotions, memory and movement. It then explores the changes in the brain which lead to the onset of Alzheimer's disease: plaques and tangles. MORE: Six known risk factors for Alzheimer's disease. Together, these plaques and tangles begin to slow down the neurons and eventually kill them off, leading to some of the classic symptoms of Alzheimer's disease. Researchers believe that tangles and plaques are present for many years before their destruction becomes apparent. The damage typically starts in the hippocampus area of the brain, which is responsible for forming memories, and then continues to progress throughout other areas of the brain leading to the shrinkage of the organ. MORE: Tracking early-onset Alzheimer's patients could be key to finding a cure. 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.