Alzheimer's disease is a type of dementia that causes problems with memory, thinking, and behavior. The symptoms usually develop slowly and get worse over time, becoming severe enough to interfere with daily tasks. Many scientists believe that Alzheimer's disease is caused by an increase in the production or accumulation of a specific protein (beta-amyloid protein) in the brain that leads to nerve cell death. Genetics also seem to play a large role in developing the disease. The specific causes of Alzheimer's, though, are not yet fully understood. Currently, the is no cure for Alzheimer's, but there are drug and non-drug treatments may help with both cognitive and behavioral symptoms. A number of drugs are available to aide in stopping the disease from progressing, and lesson symptoms such as memory loss and confusion. Also, a growing number of herbal remedies, dietary supplements and "medical foods" are promoted as memory enhancers or treatments to delay or prevent Alzheimer's disease and related disorders. Lifestyle choices are one way to help to prevent Alzheimer's. This includes having a healthy brain, which comes from exercise, diet, sleep, and stress management.