Gaslighting is dangerous because it undermines a person's sense of self-belief, self-esteem and sense of identity. If you tell someone they're wrong about things over and over, it can make them feel insecure and less confident in their point of view. This course will define and help you recognize what gaslighting is and is not. How to navigate someone who is gaslighting you and how to heal from it. Gaslighting is a type of emotional abuse. Someone who is gaslighting will try to make a targeted person doubt their perception of reality.