Explore the profound impact of trauma on the brain and its influence on behavior in this TEDx talk by Dr. John Rigg. Delve into the intricate workings of the human brain, focusing on the primitive animal brain and basic instincts. Discover how traumatic experiences trigger hyperactivated fight-or-flight responses and learn about the anatomy of the brain through practical examples. Examine the role of stress hormones and their effects on the primitive animal brain. Gain insights into ontology and hyper-arousal as they relate to trauma. Understand how the brain constantly reacts to sensory information, generating non-thinking responses before conscious processing occurs. Benefit from Dr. Rigg's unique perspective as both a professional musician and physician who transitioned to medicine in his 40s.