Jessica Biel shocked by lack of knowledge about her own body

Jessica Biel changed her long hair to a short bob. She shared a video on social media. She had a bob before in 1998 and 2006. Anh Co Tran cut her hair. Jessica went to a book signing event in Studio City. She wore a seafoam blouse and blue jeans. She promoted her book about periods for kids. She has two sons, Silas and Phineas. Her eldest son reacted well to the book. Jessica wrote the book to help kids understand periods. She will donate some money from book sales to help with period poverty. Jessica's husband, Justin Timberlake, had a concert in Inglewood. He will go on tour soon. Jessica talked about how important it is for kids to learn about their bodies. She felt unsure about talking about her needs in the past. She realized many people don't know enough about their bodies. Jessica partnered with Period.org to write the book. She wanted kids to understand their bodies better. Some people who are born with different biological characteristics also have periods.