RT | Alzheimer's symptoms could appear 18yrs before diagnosis – study RT Efforts to successfully prevent the disease may well require a better understanding of these processes near middle age," Rajan said. Nearly 44 million people worldwide have Alzheimer's or a related dementia, according to Alzheimer's Disease International. Virtual tour gives public the experience of Alzheimer's and other dementias Alzheimer's Disease May Be Predicted 18 Years Before Diagnosis With Memory ... Study: Middle Age Memory Failures Can Predict Alzheimer's 18 Years Before ... |