When we lose someone or something we love, it can feel like we've lost a part of ourselves. And for good reason--our brains are learning how to live in the world without someone we care about in it. Host Emily Kwong talks with psychologist Mary-Frances O'Connor about the process our brains go through when we experience grief. Her book, TheGrieving Brain: The Surprising Science of How We Learn from Love and Loss, publishes February 1, 2022.