Keep in mind that no matter how many changes you make, or how many steps you take in the right direction, there are no guarantees. "Science is unlocking many of the mysteries of the brain, but we don't have all the answers yet," says Heather Snyder, senior associate director of medical and scientific relations with the Alzheimer's Association. "You can do everything 'right'—stay physically active, eat a low-fat and low-cholesterol diet, remain socially and mentally active, and still not prevent Alzheimer's disease. We need more research before we can answer these types of questions."
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