Popular fitness instructor Trudi Fleetwood says that exercise is all about moving — in old age, too. And having fun at the same time. She remembers her grandmother doing Jazzergetics and her mother following a Jane Fonda LP, wearing leg warmers, leotard, and a belt. Rachel talks about "the Taylor legs" and sings a nursery rhyme, appallingly. That did at least involve moving her mouth, and after all, it's all about moving in old age.

At 75, Rachel made multiple attempts to find a gym that suited her. Again and again a gym would move, or close, or change so that she had to try again. Finally she joined a community gym, Club Active, run by the Wellington City Council. This one suits her down to the ground for mixed ability Pump and Pilates classes and a shower after swimming in the sea. There she found a variety of great instructors, including Trudi.

If you're learning how to be old (and whether you know it or not, you are), you know that exercise performs miracles. If "exercise" is a scary word to you, change the word to "moving." That includes walking. Getting off the chair, if you can, nodding your head, scrunching your shoulders, bending your knees or wiggling your toes.