Aging with Grace: The Nun Study and the Science of Old Age : How We Can All Live Longer, Healthier and More Vital Lives

This text presents the story of an ongoing, long-term study of a large group of Catholic nuns who have given Dr David Snowdon access to their medical and archival records and participate each year in comprehensive mental and physical examinations designed to measure the long-term effects of aging. They have also agreed to donate their brains upon death. So far there are 250 brains in the bank making it the world's largest of its kind.