Are seed oils unhealthy?

In this week's Ask the Naked Scientist, Chris Smith tells us if we are seeing an increase in cancer numbers. Also, what are the underlying causes of colon cancer, and what treatments are available? Does alcohol aid sleep or disrupt it? Are seed oils unhealthy? Are mosquitos more likely to come for you when you wear a certain deodorant? Is paraffin carcinogenic? Like this podcast? Please help us by supporting the Naked Scientists (thenakedscientists.com/donate)