 We've looked at several techniques that individuals can practice, but it's striking, of course, that long before you had psychological science come up with solutions to the problem of chatter, societies have been grappling with ways to help people deal with stressors and out-of-control anxiety. You've cited a remarkable study looking at a technique practiced by Israeli women living in war zones. What did the women do to bring their anxieties and that chatter under control?