Dr. Nicole Pensak is here to reassure us that being "rattled" is normal, and not at all surprising. After all, seismic changes in identity and emotion have occurred. Research shows that a woman's brain shifts in real, biological ways very quickly after giving birth. Many women become hypervigilant, for good reason: the brain is telling her to stay alert because she has a human to keep alive and safe. While these brainpower boosts can cause anxious feelings, they can also help to manage the distress and harness the advantages of the postpartum brain. In fact, this is a time of neuroplasticity, when the brain is more receptive to positive reinforcement. 240 pages hc