Cortisol activates the fight-or-flight response. This hormone used to be necessary for survival, but recent research shows it may be harmful to the brain. Sudha Seshadri, M.D., director of the Glenn Biggs Institute for Alzheimer’s & Neurodegenerative Diseases at UT Health San Antonio, shares her research insights with Discover Magazine. To read the article, visit … Continue reading Discover Magazine: Fight or Flight? Why Our Caveman Brains Keep Getting Confused