"So while there was no difference in Alzheimer's occurrence between the extroverted-calm person and the introverted-calm person, the most likely persons to succumb to Alzheimer's were both neurotic and introverted. This suggests that socialization is still important, although not as important a risk factor in Alzheimer's as neurosis...."
"To summarize the results, people identified as calm, self-satisfied, and not easily upset were half as likely to develop Alzheimer's Disease than those prone to distress....."
http://inventorspot.com/articles/ne..._more_likely_develop_alzheimers_disease_22488
"To summarize the results, people identified as calm, self-satisfied, and not easily upset were half as likely to develop Alzheimer's Disease than those prone to distress....."
http://inventorspot.com/articles/ne..._more_likely_develop_alzheimers_disease_22488