No argument, no precision to the child's age if not before 1 year and after 1 year, with examples from his own personal experience with her children, as if that was enough to have raised children to give lessons, one leitmotif let children cry because crying is beneficial for health and if your baby is not crying? is that it is psychological harm !!! This book is far from convincing me, especially because of its lack of foundation and ultimately I find disturbing.
