I had heard a lot of good reviews about this book, it seemed to be one that had a well-built dystopian world and well developed character. And as I, and apparently most female teenage/ Young adult readers, have now become obsessed with dystopian novels I had to read it.But once again it feels like this book has something missing. I have noticed with a lot of dystopian and fantasy novels nowadays that either the world or the characters are sacrificed to get a story written quickly. With this book I felt like the world was a bit sacrificed. I liked the characters, although they were nothing special and I have now forgotten their names (Note to self: Take notes when reading for review purposes) but I really did not like the world they were set in. It seemed very flimsy. Ok so in order to make sure that the human race was immune to everything we managed to create a race of super humans that have children with an abnormally short lifespan? That makes sense…. Not. But what makes even less sense is in this dystopian world future is the fact that women’s life expectancies are shorter than men’s, when it is currently the other way round. I mean ok I understand that our main protagonist is a teenage girl who doesn’t understand much about genetics but that feels like a bit of an excuse as to why there just isn’t an explanation for things.This world was obviously built around the characters to give the author a way of telling the story she wanted to write, and I have no problem with that, except for the fact that it is blindingly obvious. The world is just badly created. I mean, as if the entire world decided that in one generation they would all have their babies made into the super babies and as if the entirety of the world EXCEPT for the United States ONCE AGAIN GETS DESTROYED. I’m getting a little tired of everywhere but America being wiped off the map. What about Europe, Russia or China, who are all equally capable of fighting back and surviving?If you ignore the fact that the world is ill conceived and concentrate on the characters this story is almost enjoyable, hence the 3 stars, but I got it for cheap on my kindle and would not recommend it to anyone who was going to pay full price. It is just such an easily skippable book.