The first lesson in Lisa Feldman Barrett’s popular book, Seven and a Half Lessons About the Brain, 1 is titled "You Have One Brain (Not Three)." It focuses on debunking Paul MacLean’s triune model of ...

Simran's anxiety in Mumbai's rush hour highlights the triune brain's primal defense. When threatened, the reptilian brain overrides reason, but peace is found through mindfulness and trust.

This article originally appeared on Massive. In May 2007, Wim Hof went on a short hike in well-worn summer clothes, a pair of shorts and open-toed sandals. But it may have been a poor choice: his foot ...

American physician and neuroscientist Paul D. MacLean pioneered the concept of the triune brain — the idea that the human brain evolved through three different stages. Those stages are known as the ...