Dr Tim Spector. Photo: Supplied.
If you've ever had a hangover then maybe you should start blaming the microbes living in your gut, and not that extra drink you had.
Tim Spector is a professor of genetic epidemiology at King's College London and he's been studying our guts and how the bacteria that live inside us are affected by what we eat and drink.
He's says there's growing evidence that how bad we feel after drinking too much could be related to our microbial guests, which we collectively call our microbiome.
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Professor Tim Spector's book The Diet Myth: The Real Science Behind What We Eat is published by Weidenfeld & Nicolson.