A new children's book titled "Merveilleux poils" (Marvelous Hairs), written by author Mathis and published by La Doux in late August, explores the science, function, and cultural importance of body hair. Aimed at children aged five and older, the book answers common questions about body hair, such as what it is made of, where and when it grows, its purpose, and whether everyone has it. It also covers topics like animal fur, the tiny hairs on fruits like kiwifruit, and French expressions involving hair, such as "barbant" (meaning "annoying") and "être de mauvais poil" (literally "to be of bad hair," meaning in a bad mood). The book explains the biological role of hair, including how eyebrows help divert sweat and how eyelashes protect eyes from dust, pollen, and microbes. Mathis emphasizes that body hair is not useless or harmful but has important functions in the body. This message is especially relevant for young readers who may be curious or confused about their own changing bodies. Aline Nativel Id Hammou, a psychologist who specializes in childhood and family issues, notes that many children find body hair fascinating, especially during periods of physical development. She explains that it is completely normal and legitimate for children to ask questions about the function and purpose of body hair. However, she also points out that parents may feel uncomfortable discussing such topics, and books like "Merveilleux poils" can serve as a helpful tool to open up these conversations. The book also touches on how society and culture view hair, including its historical use to distinguish between genders. Nativel Id Hammou suggests that parents can use the book to discuss how boys can have long hair and how girls can have underarm or leg hair, emphasizing that the decision to keep or remove body hair is personal and that each person has the right to choose what happens to their body. For older children approaching adolescence, new and complex questions may arise as their bodies change. Nativel Id Hammou advises parents to reassure their children that these changes, while sometimes unsettling, are normal and natural. If parents feel unsure or anxious about these conversations, they can seek guidance from healthcare professionals or other trusted adults.