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In this edition: using electricity to slow dementia, on expedition with the caving club, and Imperial scientists head to the World Economic Forum.

The podcast is presented by Gareth Mitchell, a lecturer on Imperial's MSc Science Communication course and the presenter of Click Radio on the BBC World Service, with contributions from our roving reporters in the Research Communications group.

OR LISTEN TO INDIVIDUAL CHAPTERS

– We follow the Cassini spacecraft in its final moments and discuss the largest-ever study of statin use, which reveals they really do cut deaths.

– We talk to an Imperial research who believes using electricity to stimulate the brain could slow the progress of dementia and Alzheimer's.

– Journey deep into a Slovenian mountain with the , squeezing through narrow passages and discovering new caverns. You can also listen to the .

– We meet Imperial participants in the World Economic Forum's , preparing to share their research with world leaders and the general public.

All caving images by Rhys Tyers.

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