Where do you go to get your food you're stuck during lockdown or bushfire smoke? And what does it mean to see empty shelves in the supermarket?

That can be hard enough for most people, but even harder if you're not mobile.

Sathiyakumar Rahanan is researching for his PhD with the University of Canberra where he is looking at the role of local shops.

If you're a small shop owner, you can help by being part of his study [email protected] (or 0475 614 047).

In this episode Rod also interviews documentary maker Derek Muller, who produced Vitamania, on SBS.