Jonathan responds to your texts and tweets, is joined in studio for all the latest science stories for Newsround and speaks to one of our two guests featured on the show. Listen and subscribe to Futureproof with Johnathan McCrea on Apple Podcasts and Spotify. Download, listen and subscribe on the Newstalk App. You can also listen to Newstalk live on newstalk.com or on Alexa, by and asking: 'Alexa, play Newstalk'
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We think of our eyes as external organs, but anatomically we can also consider them to be an extension of the brain, and this feature is proving to be really useful when trying to understand not just what's happening in our brains, but in our bodies as well. Joining Jonathan to discuss is David Keegan, Consultant Ophthalmologist at the Mater Hospital.