The immortal jellyfish is capable of winding back its lifecycle to become young again. Scientists are unlocking its cellular secrets to find ways human cells could rejuvenate too.
Politicians are urged to prepare as over-65s are projected to outnumber children in NI by next year.
Members of North Somerset's Ageing Without Children group go to make friends and get support.
Wokingham in Berkshire was found to have the highest life expectancy in England earlier this year.
The free walks range from 10 to 90 minutes and are aimed at all abilities.
Age UK Northumberland volunteers provide face-to-face support to help people achieve personal goals.
Sarah Harper challenges the narrative that ageing populations represent an inevitable economic and social burden.
Peter Byers says he walks into Pocklington town centre "to make sure people know I'm still alive".
In one of the world's fastest aging countries, older people are finding creative ways to stay healthy.
