This PowerPoint covers Fear and Disgust. WHAT DOES FEAR MEAN TO YOU?WHAT TRIGGERS FEAR IN THE BRAIN?Fear is a chain reaction in the brain that starts with a stressful stimulus and ends with the release of chemicals that cause a racing heart, fast breathing and energized muscles, among other things, also known as the fight-or-flight response.Facts about fearAn unpleasant feeling triggered by the perception of danger, real or imagined.As long as there's no actual threat, try breathing slowly a