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How Do You Spot a Liar? Scientists Say It’s Trickier Than You Might Think
For over a century, people have been inventing technology to catch a liar in the act. The polygraph was wildly popular in the mid-20th century, until science and federal law cracked down. Then, there was an era of Micro Expression Training. Now, there's talk of using AI to analyze the human voice. But does any of this even work? What are the inherent risks to relying on a single cue for detecting a lie, and how does that allow bias to creep into judgements of guilt and innocence?
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People Are Living Longer. Can Old Age Be an Opportunity?
More and more people are living longer lives thanks to modern technology and medicine. But what does that mean for our mental health and making sure we’re living better as well as longer? Stanford University Center on Longevity founding director Laura Carstensen digs into how the milestones of life should be reworked, and tells WSJ’s Danny Lewis how society can adapt and plan for the 100-year lifespan to become common.
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As America’s Marijuana Use Grows, So Do the Harms
In midcoast Maine, a pediatrician sees teenagers so dependent on cannabis that they consume it practically all day, every day — “a remarkably scary amount,” she said. From Washington State to West Virginia, psychiatrists treat rising numbers of people whose use of the drug has brought on delusions, paranoia and other symptoms of psychosis. ... “There is no other quote-unquote medicine in the history of our country where your doctor will say, ‘Go experiment and tell me what happens,’” said Carrie Bearden, a clinical psychologist and neuroscientist at the University of California, Los Angeles.
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We Scroll Through 300ft of Newsfeed a Day, And Bad News Gets Most Attention
The average smartphone user is scrolling through 300 feet of news feed a day, the height of the Statue of Liberty, Dr Jay Van Bavel, a professor of psychology and neural science at NYU says. Five billion people around the world are on social media with the average user online for about three hours a day. And the stuff that grabs our attention tends to be negative. Why? It's in the genes, Van Bavel told RNZ's Afternoons.
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Navigating Divisive Conversations: Why We Underestimate the Benefits
Podcast: Under the Cortex hosts Kristina Wald to discuss the benefits of talking about divisive topics, even when speaking with those who disagree, and how we can better approach polarized discussions.
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Why You Should Change Your Exercise Routine—and How to Do It
The alarm clock blares, and you reach for your running shoes without thinking about it. Next thing you know, you’re jogging through your neighborhood on the same route as every other morning. ... Katy Milkman, an economist at the Wharton School of the University of Pennsylvania, studies these types of changes, called temptation bundling. The added pieces “complement your workout in ways that make the activity more enjoyable,” she says, boosting average weekly workouts by 10-12%. When you tire of a podcast, picking a new one is easier than upsetting the whole exercise apple cart. “Variety is created through shifting the bundle,” says Milkman, author of the book How to Change.
