Fresh Air

This is the time of year for giving--whether that's a holiday gift for someone we love, or a charitable donation to a good cause. But why do we give? And how can we do it better? This week on Hidden Brain: how to be more generous, get your friends and family what they actually want, and why it's okay to regift.

Why do young people join ISIS? Is it nihilism, or, as social scientists suggest, a perverse idealism? This week on Hidden Brain, we explore the psychology of terrorist groups, and why so many young people leave behind promising futures to join them.

This week on Hidden Brain, Shankar Vedantam looks at what we find funny and what, well, crosses the line. Comedian Bill Burr joins us to talk about why race, gender and Caitlin Jenner can be so funny.

This week on Hidden Brain, we explore real and fake, from fine art to fine wine. Shankar speaks with Noah Charney, author of The Art of Forgery, about why art forgers are compelled to spend their lives copying the great masters, and why so many of them want to get caught. Also this week: why we love studies that prove wine connoisseurs wrong.

The holidays are all about generousity, gratitude, and spending time with the people we love. But we all know the whole "spending time with the people we love" part has its challenges. Hidden Brain is here to help — with science-based tips to give you a happier holiday.

Hidden Brain host Shankar Vedantam talks to comedian Aziz Ansari — star of a new Netflix show and coauthor of Modern Romance — about Tinder, texting and how dating is a bit like... buying jam.

This week on Hidden Brain, researcher Katy Milkman explains why backup plans may make us less motivated, Dan Pink is back to discuss moral hazard, and NPR's Adam Cole ties it all together with a song.

Jesse always wanted to fall in love. So when the perfect woman started writing him letters, it seemed too good to be true. Because it was. This week, a story about a con — with a twist. When the con was exposed, its victims defended the con artists. They still wanted to believe the lie.

This week, for Halloween, the Hidden Brain podcast gets spooky. We explore the science of fear — traveling to a haunted house curated by a scientist to investigate what scares us, and why some people enjoy this sensation more than others.

On this week's episode of Hidden Brain, we'll explore the science of compassion, and how being kind to others can make a real difference in your own life.