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The Diary of a CEO with Steven Bartlett · June 19, 2026 · 25m

Most Replayed Moment: The 4 Personalities Living In Your Brain! How To Switch Between Them

Dr. Jill Bolte Taylor, a Harvard-trained neuroscientist and bestselling author, explains the four distinct "personalities" that exist within every brain based on left and right hemisphere function. She explores how trauma, addiction, and emotional reactivity map onto these personality structures, and how understanding this framework can help you recognize and switch between different mental states to feel calmer, more focused, and more in control of your responses.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Curious

Trauma responses and addictive behaviors are rooted in specific personality or neural states that can be identified and consciously shifted.

Novel

Four Personalities in the Brain
The brain contains four distinct "personalities" based on left and right hemisphere organization and how trauma and emotion shape neural architecture.

Highlights

Left Hemisphere: Sequential, Logical, Language-Based
The left hemisphere specializes in linear, sequential processing, language, analysis, and future planning—the brain's "manager."
The right hemisphere processes the present moment holistically, manages emotional awareness, and enables connection and calm—the brain's "inner witness."

Editorial

The reactive, emotionally flooded state that hijacks your behavior is a recognizable neural configuration that you can learn to identify and shift out of.

References

My Stroke of InsightJill Bolte Taylor (2008)Her breakthrough book documenting her stroke recovery and hemispheric insights

Misc

Most replayed moment indicates this segment resonated strongly with audience—suggests broad appeal of brain personality framework
25-minute format suggests this is a clip or highlight reel rather than full episode
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