The topic of gaslighting in professional settings, particularly in the context of health and safety, is highly relevant and often overlooked. The term “gaslighting” was introduced in the 1960s to describe psychological manipulation intended to instill doubt in the victim’s objective perception of reality. This manipulation can lead to a serious drop in confidence and morale, especially in dangerous safety-critical environments. As noted by Robin Stern in “The Gaslight Effect: How to Spot and Survive the Hidden Manipulation Others Use to Control Your Life,” recognizing these tactics is essential for anyone in a leadership position.

Every safety manager has probably faced this unsettling phenomenon at some point. This is how gaslighting can lead to serious issues in the workplace. Let me give you three examples.