Certain habits identify a person as getting on in years, including falling asleep in front of television.
A survey of 2,000 people has found that the 40 most common pointers included taking your slippers to visit a friend's house and using phrases such as: "It wasn't like that when I was young," the Daily Express reported.
The poll conducted by life insurance specialists Engage Mutual, found that eight out of 10 people believed that you are only as old as you feel, while 76 per cent intend to enjoy their youth for as long as possible.
However, it was found that more than half were worried about getting old, losing memory, becoming ill and deteriorating physically.
The research suggested that almost half were nervous that they would be lonely in old age and four in 10 fretted about having no money.
Only 53 per cent have plans for a pension and 45 per cent have a savings account or retirement fund in place.
Other indicators of age include struggling to use new technology or failing to keep up with it.