Final answer:
The Nun Study has indicated various factors associated with cognitive and emotional health in aging nuns, except for negative emotions in early adulthood. Positive emotions, intellectual activity, and idea density were all linked to better cognitive and emotional health.
Step-by-step explanation:
The Nun Study is a research project that investigates the factors associated with cognitive and emotional health in aging nuns. The study has provided several insights, but there is one exception among the given options. The exception is that negative emotions in early adulthood were not linked to longevity. The other options, such as positive emotions, intellectual activity, and idea density, were all found to be associated with better cognitive and emotional health.