We spend 85% of our lives inside but rarely, if ever, consider what impact the design and architecture of these spaces have on us. Yet the design of our living space can connect and silently shape our identity, self-esteem, relationships, chances at school, and even our weight and immune system. Architecture critic Tom Dyckhoff presents a three-part series looking at how architecture affects us at home, work and play, and discovers the secret ways that buildings profoundly affect our behaviour, feelings and identity.