WOW. This book was SO right up my alley but is not for every reader (I got a lot of "you're reading what" Personal stories interwoven with sound science - absolutely fascinating and gives sound hypotheses for why we're seeing the modern plagues in today's society. If you've ever wondered why diabetes, allergies and other autoimmune disorder rates are rising so rapidly and want to go beyond the popular "hygiene hypothesis" I recommend this read! I wish I could start my children's first three years all over again; I will think about this every time we're sick and I'm faced with the choice of antibiotics. I recommend this to anyone interested in science and personal health.