Question: how does the brain change after learning something new?

Alex Reid answered on 15 Nov 2018:

Hi Crunchy, your brain learns by optimizing itself. It does this by forging new connections between brain cells (cells that ‘fire together wire together). Your brain will also ‘prune’ and remove connections that are not so useful. Both these things rely a lot of feedback you get from the environment (i.e. learning!). All your memories will be held in a vast network of billions of brain cells containing trillions of connections, and these will be updating themselves constantly.