Why we worry at night, and Julia Baird's search for grace

Getting to the end of a busy day, all you want to do is get some sleep, but then anxious thoughts start rushing through your head. Worrying at night is a common phenomenon. Learn how chronic stress is exacerbating an evolutionary phenomenon, and how to calm yourself and get the best sleep you can. Plus, author and journalist Julia Baird teases out the idea of grace, and why we're yearning for it in our modern world.