Human Brains Are Shrinking—Here's Why

Common Sense Health · Aug 10, 2026 · 15m · transcript

The conversation explores the idea that human brains may have been shrinking due to a missing piece in the modern diet - DHA (decossa hexanoic acid). It delves into the importance of DHA as a structural brain fat, the historical context of human brain size, the significance of DHA in seafood, and the impact of DHA on brain health and development.

Takeaways

DHA is a crucial structural brain fat

Seafood is an important source of DHA

Chapters

00:00 The Missing Piece in the Modern Diet

02:12 The Importance of DHA in Brain Structure

03:36 Historical Context of Human Brain Size

06:47 The…