[thedoc (OP)]

Are helium-filled balloons less likely to pop? How does a cordless toothbrush charge? Is there much mercury in compact fluorescent bulbs? Why do tired toddlers rub their eyes? Is lactose intolerance more common than it once was? And is it possible to trigger earthquakes artificially? Dr Chris answers this week's burning questions on Talk Radio 702, South Africa...
Listen to this Show

or  

If you want to discuss this show, or ask a question, this is the place to do it.