More than half the world’s population speaks more than one language. Viorica Marian, PhD, of Northwestern University, talks about why speaking multiple languages may have far-reaching cognitive benefits, how the bilingual brain processes language, and how the languages we speak shape the way we think and perceive the world. Originally aired March 1, 2024.

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Are you dreading the cold, dark months ahead? In Scandinavia, where the winters are among the coldest and darkest on earth, many people look forward to winter as a time of coziness, beauty, and rest. Psychologist Kari Leibowitz, PhD, author of How to Winter, talks about how cold weather and darkness affect our body and mind and what can we learn from the way that residents of cold-weather places approach the season. Originally published Dec. 4, 2024.

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From classrooms to boardrooms, from sports to social media, we’re constantly sizing ourselves up against other people -- and being sized up in return. Dr. Stephen Garcia discusses what drives some people to be extremely competitive in their work, in relationships and in life; which situations bring out the competitiveness in all of us; and how to handle the overly competitive people in your life.

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It’s December, which means it’s peak season for charitable donations. But how do you decide which organizations to support? Joshua Greene, PhD, discusses how people make moral choices and the implications for where they donate their money; how people can donate using their head and their heart; and how moral psychology can offer avenues to help people cooperate across partisan divisions in a polarized world.

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In an age of increasing distractions, researchers have found that spending time in nature can be an antidote that helps us restore our focus and attention. Marc Berman, PhD, talks about why natural environments are “softly fascinating” and why that’s beneficial for the brain; why even cold, rainy walks can be good for you; whether bringing nature inside – through plants, art or patterns – may have some benefits; and what implications this research has for policymakers, urban planners and others who shape our physical world.

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Studies have shown that gratitude can help us cope with challenges and is good for our relationships and our health. But figuring out how to foster gratitude in kids isn't always easy or obvious. Andrea Hussong, PhD, talks about why gratitude matters; how to help kids feel thankful, recognize generosity and think about others; and how to respond productively in the moment when kids do something ungrateful.

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For people with misophonia, certain sounds – like chewing, coughing or pen clicking – can trigger strong emotional reactions including anxiety, disgust and rage. Heather Hansen, PhD, director of the Misophonia Research Network, talks about scientists’ evolving understanding of misophonia; what’s happening in the brain when someone hears a trigger sound; whether misophonia is related to other mental health conditions; and advice for those living with misophonia and their friends and family.

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Over the past several years, the rise of GLP-1 drugs such as Ozempic and Wegovy has changed the conversation around weight and obesity in the U.S. Rachel Goldman, PhD, talks about how GLP-1s work; the effects they can have on mental health; what questions to ask if you’re considering trying these medications; how weight loss can shift people's relationships with their family, friends and partners; and why there’s still stigma around the use of GLP-1s and how patients can navigate that.

Find Dr. Rachel's new book at When Life Happens: The Mindset Shift You Need to Manage Stress, Build Confidence, and Break Free.

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We all want to be liked and respected. But sometimes, our intuitions about how to make a good impression lead us astray. Övül Sezer, PhD, talks about common mistakes, including humblebragging and hiding our accomplishments; whether the rules of making a good impression are different on social media; and how to “brag wisely” by sharing your journey rather than listing your accomplishments.

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Body-focused repetitive behaviors such as hair pulling (trichotillomania) and skin picking are relatively common but remain stigmatized and misunderstood. Suzanne Mouton-Odum, PhD, and Clare Mackay, PhD, talk about why these behaviors occur and how they relate to grooming and emotion regulation; how living with BFRBs affects people’s lives and mental health; why reducing shame and stigma is so important; and how parents can support children with BFRBs.

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