We could all use a good laugh right now—and with good reason. Laughter has the ability to relieve pain, boost mood, improve the immune system and even prolong life. We revisit this episode with clinical psychologist Dr. Jodi De Luca, who reveals the fascinating science behind this very human phenomenon, and how to get your daily ration of laughs....

The good news is that our brains are not fixed or static, that we can continue to develop them during our lifetimes—as long as we keep them in good shape. We revisit this episode with neuroscientist Dr. Tara Swart, author of The Source: The Secrets of the Universe, the Science of the Brain; she reveals five tips to keep our brains in peak condition....

Most people would rather avoid conflict than face it head-on. But confrontation can actually be a good thing. We revisit this episode to get great insights as well as practical tips on how to turn confrontations into productive experiences. Our guest: Amy Morin, psychotherapist and author of "23 Things Mentally Strong Women Don’t Do."...

With so much going on in our lives, it’s no wonder so many of us are distracted and even agitated. We revisit this episode to get great advice on how to use breathing techniques to calm a whirling mind from Dr. Patricia Gerbarg of the Breath-Body-Mind Foundation; Dr. Gerbarg is also assistant clinical professor of psychiatry at New York Medical College....