Constant worry and stress are bad for our bodies and our minds, but how can we break the cycle and relax? It turns out scientists have learned a lot from one of America's most stressed-out communities - caregivers.  In this episode of The Happiness Lab, hosted by Dr. Laurie Santos, Hollywood star Steve Guttenberg talks about the toughest chapter of his life—caring for his dying dad—and Dr. Elissa Epel explains why some caregivers suffer badly from stress, while others seem to find ways to live with the awful situation they find themselves in daily.  Learn more about your ad choices. Visit megaphone.fm/adchoices