Geraldine Robarts is a painter based in Kenya who has been exhibiting since 1958 and who still paints everyday, aged 82. Whether it’s a passion for what they do, the social connection, or the simple need to earn a living, a growing number of octogenarians remain in work. Over the coming weeks, Business Daily will hear from several workers putting in a shift, well into their ninth decade. As retirement ages around the world creep higher, we're asking what can these older professionals teach us about the nature of work? And when is the right age to down tools? Presenter: Vivienne Nunis Image: Geraldine Robarts. Credit: BBC