"The paradox of dementia goes to the heart of the puzzle of who we all are. On the one hand, we are flesh and blood, biological individuals. On the other, we are more than just animals. Without our minds we are not ourselves, even if our bodies keep functioning."Download a podcast or read the transcript of yesterday's alternative thought for the day, part of a series run by The Humanist Society of Scotland and The Guardian. It was also included in Thursday's Guardian Daily podcast.