I am sure my mom has fibro (she is 67 years old) and I think my two sons have it. They are 15 & 16 years old. Has anyone read the book, What your Dr may not tell you about pediatric fibro? Is there info in there that is not covered in the other book? I am sure my family and friends will think I am crazy if I tell them I think my boys have FM. I think they both should be taking guai. Anyone out there have any boys taking guai & how long have they been taking it? j.