Watch these Videos

1. Three Components of Emotion and Universal Emotions by the Khan Academy 8:02 minutes
   https://www.khanacademy.org/test-prep/mcat/processing-the-environment/emotion/v/three-components-of-emotion-and-the-universal-emotions

2. Theories of Emotion by the Khan Academy 8:13 minutes
   https://www.khanacademy.org/test-prep/mcat/processing-the-environment/emotion/v/theories-of-emotion

3. How Stress Affects Your Body by TEDEd 4:43 minutes
   https://ed.ted.com/lessons/how-stress-affects-your-body-sharon-horesh-bergquist