A STUDY, which began in 1986, of a group of nuns from the city of Mankato in the United States who have outlived many others, has astonished the world. The most surprising result, of this Nuns of Mankato Study by David Snowdon, is the discovery that the way we express ourselves in language, even at an early age, can foretell how long we'll live and how vulnerable we'll be to Alzheimer's decades down the line.
Snowdon found that the nuns who had expressed the most positive and gratitude-based emotions in their writing as girls ended up living longest, and that those on the road to Alzheimer's expressed less gratitude and fewer positive emotions. His conclusion: If you want to live longer, be positive and show gratitude.