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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When we’re happy, our bodies become flooded with dopamine and serotonin, two types of neurotransmitters in the brain; our hearts might even beat faster and maybe, we even muster a smile. But does it work the other way? Can contorting our faces into a smile give us that chemical hit that actually makes us feel good? Nicholas A. Coles from the Center for the Study of Language and Information at Stanford University joins Jonathan to discuss.