The science is clear: people who engage in spiritual practices live longer, happier, healthier lives. For the past few years, two researchers — Dave DeSteno, who runs the Social Emotions Lab at Northeastern, and Lisa Miller, founder of the Spirituality Mind Body Institute at Columbia — have been trying to figure out why. They’ve found that treating religious rituals as tools we can adapt to our individual needs and values can help all of us — staunch atheists and devout believers alike — live more meaningful, successful, and connected lives. In this episode, Dave and Lisa share what they’ve learned, discuss the fraught relationship between science and organized religion, and offer tips for making the most of your holiday rituals.

In “Dopamine Nation: Finding Balance in the Age of Indulgence,” Dr. Anna Lembke says today’s superabundance of pleasurable stimuli makes us all vulnerable to overindulgence. But don’t lose hope. Anna, the medical director of addiction medicine at Stanford, says that by understanding how modern stimulants — from Instagram to masturbation machines — prey on our primitive brains, we can find ways to overcome the unhealthy dependencies that prevent us from leading balanced lives.