In this episode, I explain the biological roles of the four major neuromodulators—dopamine, epinephrine (aka adrenaline), serotonin, and acetylcholine—and describe…
View full lesson: http://ed.ted.com/lessons/how-stress-affects-your-body-sharon-horesh-bergquist Our hard-wired stress response is designed to gives us the quick burst of heightened alertness and…