Sundays 8pm to 11pm on Radio 2
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Leading cancer researcher, physician and author Siddhartha Mukherjee on cancer prevention and why smoking can kill you. In the clip, Mukherjee talks about balancing the latest research with old-fashioned common sense...
'There's a new study that makes the argument that if you take people who are high risk - smokers that are high risk - and you perform CAT scans, you can detect cancers. The problem is that for dollar for dollar, it's much better to knock the cigarette out of the person you see smoking outside... than to perform a 6000 dollar CAT scan. But - if that's what works, that's what works.'