Genes and organs
The fourth chapter, Genes and organs examines how the interiors of our bodies structure and influence our exterior surfaces and identities and shape our daily lives, and how the inner workings of our bodies, the circulations of blood and the flows of air, affect and betray us. This chapter traces the transmission of conditions from their interior origins within the body to the outside world of everyday life and considers how the inner landscapes of the body are both visible and significant. Ami has asthma. She has learnt the warning signals of an asthma attack, from the wheezing sound originating from her chest, to the tight feeling in her shoulders, and the sudden pain in her teeth. She knows when to take her inhaler, and she also knows when to reach for the phone and call the emergency services. In moments like these, illness is transported from the safe and invisible interior of the body to the outside world.