The BBC has this article on a chip designed by UK-based scientists which can help "suppress appetite" and could, in theory, provide "a more effective alternative to weight-loss surgery."
The work is being led by Prof Chris Toumazou and Prof Sir Stephen Bloom of Imperial College London.
It involves an 'intelligent implantable modulator', just a few millimetres across, which is attached using cuff electrodes to the vagus nerve within the peritoneal cavity found in the abdomen.
The chip and cuffs are designed to read and process electrical and chemical signatures of appetite within the nerve. The chip can then act upon these readings and send electrical signals to the brain reducing or stopping the urge to eat.
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