What is the most effective treatment of alzheimer's dz? how can it be prevented?

Many: There are no magical pills for prevention of ad, but regular physical and mental exercise as well as a healthy diet and management of bp, cholesterol and blood sugar go a long way toward prevention. Many treatments are available to boost levels of certain chemicals in the brain in ad. There is no cure , but there are many drugs being tested for management of the illness.

Complex question: You ask about aging and brain degeneration, the main causes of alzheimers. Many theories and studies re prevention, but not fully clear other than handling cardiovascular risk causes such as diabetes or hypertension. Treatment is mediocre at best, but medical foods may help early, and clearly combinations of memantine and cholinesterase inhibitors work best.