Top of the list is a call for people to get fitter in late middle age. It suggests steps such as using a bicycle to travel or going to the park more often. Other health-related recommendations include stopping smoking, or at least cutting down, as well as drinking more water - while easing off on the alcohol.
It also suggests psychological preparations such as making a point of talking about ageing and beginning to view it as a positive process. "Too few of us talk about ageing as anything but a passing joke," the experts say.
Similarly, their list includes a call to "keep up to date with the kids", not just by being online and embracing new technology but by actively engaging with younger people as much as possible.
"Keep your mind active and engaged, from new digital technology through to new attitudes," they say.
"Make sure you aren't missing out and take every opportunity to talk to younger people. Try to get yourself online. Listen to One Direction (at least once)."
While the number of people working beyond the traditional retirement age has grown rapidly in the past few years, the experts advise people nevertheless to prepare for the possibility of a different kind of work as they get older. "If we are to have longer working lives, it is unlikely that many of us will stay in the same job for a long time," they add. "We need to accept our careers may change and invest in careers advice and retraining."
David Sinclair, director of the International Longevity Centre UK, said: "We should all take responsibility for ageing well. But if we are to keep active, it is important to ensure there are services available to help us do so.
"If we want people to continue to be engaged as older workers or volunteers, we must end ageism."
