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Podcast Episode

Human Brains Are Shrinking—Here's Why

Common Sense Health··17 August 2026·15 min

About this episode

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.TakeawaysDHA is a crucial structural brain fatSeafood is an important source of DHAChapters00:00 The Missing Piece in the Modern Diet02:12 The Importance of DHA in Brain Structure03:36 Historical Context of Human Brain Size06:47 The Significance of DHA in Seafood09:30 Impact of DHA on Brain Health and Development