Our heart's electrical system is an intricate network but anything that throws it out of whack can cause conditions such as cardiac arrhythmia. But what about the effect of electrical impulses in the gut? For the past 15 years University of Auckland bio-engineer Professor Leo Cheng has been measuring electrical activity in the stomach to better understand what are known as gastric motility diseases - diseases that make for a miserable life among sufferers causing bloating, vomiting and diarrhoea. He explains the research.
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