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These questions will become more urgent as the population bulge of the baby boom generation reaches the Alzheimer's years--and new research is showing that those years may start earlier than anyone had thought. Just two months ago, scientists suggested that many cases of a condition known as mild cognitive impairment, in which patients in their 40s and 50s exhibit memory and recall problems, are very likely the first step on the way to Alzheimer's disease. If so, then it's important to start slowdown strategies as soon as possible. A cure for Alzheimer's is still the ultimate goal, but, says Snowdon, "until there is a magic bullet that can stop the plaques and tangles from growing, we're going to have to take a multipronged approach that will include things like avoiding head injuries and strokes and adding nutritional supplements like folate and antioxidants."
Meanwhile, the Nun Study will continue. Snowdon and his team are attempting to study the sisters' brains before they die, using MRI scans to track how the brain deteriorates with age and how such changes correlate with those in speech, memory and behavior. And to ensure that the sisters' generous gift to science will continue to educate others, Snowdon is trying to have the brain bank and archive records permanently endowed. That way, future generations will continue to benefit from lessons that women like Sisters Ada, Rosella and Nicolette are teaching all of us about how to age with grace and good health.