A new U.S. study suggests that Alzheimer's disease and other dementias are markedly under-reported on death certificates and medical records. Death certificates tend to only provide an immediate cause, such as pneumonia, and don’t mention the underlying condition that provoked it.
A 25-year study of diet and aging in 76 rhesus monkeys shows a significant reduction in mortality and in age-associated diseases among those on calorie-restricted diets.