BBC NEWS | Health | Staying calm 'prevents dementia'

BBC NEWS | Health | Staying calm 'prevents dementia': "People who are more laid back are less likely to develop dementia in old age, a study has suggested.

Research published in the journal Neurology asked 500 healthy elderly people to fill out questionnaires about their personalities.

Those who were calm and relaxed had a 50% lower risk of developing dementia during the six years of the study."