“Gratitude allows you to take good things in,” says Lisa Lewis, PhD., director of psychology at The Merringer Clinic in Houston and an associate professor in the Merringer Department of Psychiatry & Behavioral Sciences at Baylor College of Medicine. “Often good things happen, and we aren’t very mindful when they happen. We get compliments and we brush them off. We get a promotion and all we think about is how stressful it is going to be. Our children go to college and all we can think about is how lonely we are going to be.