Key points from article :
Mental and physical health levels of a group of Italians between the ages of 90 and 101 have been examined and found that there were many common psychological traits between them.
The study concluded that positivity, stubbornness and a conscientious work ethic could be key to living a longer life.
Another common theme between the elderly participants was a passion for rural life.
The study was published in the International Psychogeriatrics journal.