More than 20 new loci on the genome have been implicated in alzheimer's disease, many of which seem to be involved in growth mood disorders immune functioning addiction

Dementia an abnormal condition marked by multiple cognitive deficits that include memory impairment Caused by diseases like Alzheimer's, Parkinson's, & Huntington's. The most common early symptom is difficulty in remembering recent events (short-term memory loss). As the disease advances, symptoms can include problems with language, disorientation(including easily getting lost).