The Jordan Harbinger Show 1272: Left-Handedness | Skeptical Sunday
139 snips
Jan 18, 2026 
Jessica Wynn, a writer and researcher specializing in science communication, dives into the intriguing world of left-handedness. She reveals that being a lefty isn't just about genetics; it's a mix of prenatal factors and chance. Fascinatingly, ultrasound studies show fetuses exhibit hand preferences early on. Wynn also discusses the brain's wiring in left-handers, leading to enhanced multitasking and creativity. Cultural taboos and historical biases against lefties are explored, shedding light on the unique challenges they face in a right-handed world.
AI Snips
Chapters
Books
Transcript
Episode notes
Lefty Guitar Restringing That Went Unused
- Jordan describes a musician host who restrung a guitar left-handed but Jordan never played it.
- The story shows practical friction when adapting right‑designed instruments for lefties.
Forced Switch In Catholic School
- Jessica Wynn recounts being forced by a nun to write with her right hand in second grade.
- The practice produced poor handwriting and reinforced cultural pressure to conform.
Mind Your Hand When Traveling
- When traveling, be mindful which hand you use to eat or interact with people in cultures where the left hand is taboo.
- Avoid using your left hand for eating or passing food in parts of India and the Middle East.
