-
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.
-
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.
-
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.
-
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.
-
Medical and Psychological Harms of Obesity Depend on Where You Live, Study Indicates
The results of a new study suggest that individuals struggling with obesity face a number of social and health difficulties, but those problems are less severe if they live in areas where obesity is prevalent.
-
How Your Brain Detects Patterns without Conscious Thought
The human brain is constantly picking up patterns in everyday experiences — and can do so without conscious thought, finds a study of neuronal activity in people who had electrodes implanted in their brain tissue for medical reasons. The study shows that neurons in key brain regions combine information on what occurs and when, allowing the brain to pick out the patterns in events as they unfold over time. That helps the brain to predict coming events, the authors say. The work was published today in Nature. “The brain does a lot of things that we are not consciously aware of,” says Edvard Moser, a neuroscientist at the Norwegian University of Science and Technology in Trondheim.
