 I'm Caroline Steele, and in this episode we're answering a question from listener Siobhan. She wants to know how buildings affect us emotionally. We've just visited the University of Aalborg in Denmark, where early results suggest that the potential for movement within a building may have a positive effect on us. So that's things like windows, doors and arches. And it seems like that potential for movement is important when you're outside a building too.