So, the NHS says: "Research shows that walking 10,000 steps a day will significantly improve your health. Putting one foot in front of the other can build stamina, burn excess calories and give you a healthier heart."
It's not the easiest thing to get started with, but - having been doing it since January - my own experience is that it definitely gets easier (indeed addictive. At the start it was "agh, 10,000 steps". Now I'm more "only 12,000 steps today?!")
One thing I have also found is that - as with dieting and our weigh in threads - having somewhere to talk to other people doing (or trying) the same thing, to encourage each other or to have a good old moan when it's all getting a bit much is a very good thing indeed.
So here inspired by this thread from TerriBull and for all those who are doing it, trying it, would like to give it a go, is the great Gransnet 10,000 steps club.
(I'm at 6,451 so far today btw!)