Left-handers make up about 10.6 percent of the world’s population. Sebastian Ocklenburg, PhD, talks about why handedness and other brain asymmetries exist; the genetic and environmental factors that influence handedness; whether there’s any truth to the stereotype that lefties are more creative; why “pawedness” is common in cats, dogs, and other non human an ... Show More
Jul 15
Social media, looksmaxxing, and why men struggle with body image, with Roberto Olivardia, PhD
For years, body image concerns and eating disorders were viewed as problems that primarily affected girls and women. But boys and men also struggle with body dissatisfaction, eating disorders, and body dysmorphia -- often in ways that go unnoticed. Roberto Olivardia, PhD, a clini ... Show More
45m 28s
Jul 8
Rethinking sleep and mental health, with Philip Gehrman, PhD
Too often, we treat sleep as something we can sacrifice when life gets busy. But a growing body of research finds that sleep is essential to both mental and physical health -- and that sleep problems can be a cause, not just a consequence, of conditions like depression and anxiet ... Show More
31m 7s
Jul 1
Why listening well is harder -- and more powerful -- than you think, with Guy Itzchakov, PhD
Most people think they’re good listeners. But really listening well is harder than it seems. Guy Itzchakov, PhD, talks about what distinguishes high-quality listening from just staying quiet while someone else talks; how feeling heard affects speakers’ emotions, attitudes and rel ... Show More
45m 21s
Nov 2021
Selects: Why Do Lefties Exist?
<p>For at least the last 200,000 years, between 10-15% of the human population are left-handed and this fact has utterly left science baffled. In searching to explain handedness, all sorts of contradictory evidence has emerged, creating a fascinating mystery. Learn all about it i ... Show More
40m 47s
Feb 2018
Howard I. Kushner, “On the Other Hand: Left Hand, Right Brain, Mental Disorder, and History” (Johns Hopkins UP, 2017)
In the early twentieth century, Robert Hertz, a French anthropologist, and Cesare Lombroso, the Italian criminologist, debated the causes and consequences of left-handedness. According to Lombroso, left-handed individuals were more likely to be criminals. Hertz disagreed. For him ... Show More
49m 16s