Actress/model Jenny McCarthy has opened up about her four-year old son Evan's autism after revealing she's planning to release a new book all about dealing with the developmental disability. The former Playboy pin-up has revealed her son is "hypersensitive to air and water" on her website IndigoMoms.com and she's determined to help educate parents and teachers about autism. She says, "I want our children to start each day in silent meditation. I want organic cafeterias, outdoor class sessions... I want it all." MCCarthy, 34, will reveal all about her own struggles with her son's autism in new book Louder Than Words: A Mother's Journey In Healing Autism. She tells In Touch magazine, "It's a heartbreaking story about a serious health issue."