Parth Shah

Not long after his sixteenth birthday, Fred Clay was arrested for the murder of a cab driver in Boston. Eventually, Fred was found guilty — but only after police and prosecutors used questionable psychological techniques to single him out as the killer. This week on Hidden Brain, we go back four decades to uncover the harm that arises when flawed ideas from psychology are used to determine that a teenager should spend the rest of his life behind bars.

"We hold these truths to be self-evident, that all men are created equal." These words, penned by Thomas Jefferson more than 240 years ago, continue to inspire many Americans. And yet they were written by a man who owned hundreds of slaves, and fathered six children by an enslaved woman. As we mark Independence Day this week, we return to a 2018 episode with Pulitzer Prize-winning historian Annette Gordon-Reed. We explore the contradictions in Jefferson's life — and how those contradictions might resonate in our own lives.

If we do a favor for someone we know, we think we've done a good deed. What we don't tend to ask is: Who have we harmed by treating this person with more kindness than we show toward others? This week, in the second of our two-part series on moral decision-making, we consider how actions that come from a place of love can lead to a more unjust world.

Far from being "the great equalizer," COVID-19 has disproportionately sickened and killed African Americans and Latinos in the U.S. Many of the reasons for these inequalities reach back to before the pandemic began. This week, we return to a 2019 episode that investigates a specific source of racial disparities in medicine and beyond—and considers an uncomfortable solution.

Confined to our homes, many of us are experiencing a newfound appreciation for our social relationships. What we may not realize — and what physicians and researchers have only recently started emphasizing — is the importance of these connections to our physical health. This week, we talk with former U.S. Surgeon General Vivek Murthy about why he considers loneliness a matter of public health, and how we can all deepen our social ties.

Many Americans feel an obligation to keep up with political news. But maybe we should be focusing our energies elsewhere. Political scientist Eitan Hersh says there's been a rise in "political hobbyism" in the United States. We treat politics like entertainment, following the latest updates like we follow our favorite sports teams. Instead, he says, we should think of politics as a way to acquire power and persuade our neighbors to back the issues we support.

Where is the line between what is real and what is imaginary? It seems like an easy question to answer: if you can see it, hear it, or touch it, then it's real, right? But what if this way of thinking is limiting one of the greatest gifts of the mind? This week, we meet people who experience the invisible as real, and learn how they hone their imaginations to see the world with new eyes.

When disaster strikes, we want to know, who screwed up? This week we explore the psychology of warnings: Why some warnings get heard, and why some of us are better at seeing what lies ahead.

What's the point of money? The answer might seem obvious: we need it to get paid for our work, and to buy the things we need. But there's also a deeper way to look at the role of money in our lives.

Our memories are easily contaminated. We can be made to believe we rode in a hot air balloon or kissed a magnifying glass — even if those things never happened. So how do we know which of our memories are most accurate? This week, psychologist Ayanna Thomas explains how memory works, how it fails, and ways to make it better.