A young boy goes to summer camp and gets into trouble when he has a big yawn, a sneeze that gets paint on the drama teacher, and the hiccups, but learns that they are all uncontrollable actions of the human body.
Text, photographs, and illustrations discuss gross aspects of the human body, focusing on reflexes, such as twitches and sneezing, and discussing hiccups, blinking, choking, signs of a cold, hay fever, sniffing, coughs, and germs.
Describes what makes people cough, sneeze, burp, yawn and have other such reflex responses and explains the role these actions play in maintaining health.