There is growing evidence that simple, everyday changes to our lives can alter our brains and change how they work.
So how do we keep our brains healthy?
BBC journalist Melissa Hogenboom explores the latest scientific research and has her own brain scanned and analysed, with intriguing results.
Watch part two of Brain Hacks here: https://www.bbc.com/reel/playlist/brain-hacks?vpid=p0gh541h
Subscribe here: http://bit.ly/1rbfUog
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