Gaslighting is a form of psychological manipulation where one person systematically causes another to question their own reality, memory, or perception. It can happen in romantic relationships, friendships, families, workplaces, and even medical settings. The term comes from a 1938 play called *Gas Light* by Patrick Hamilton, in which a husband manipulates his wife into believing she’s losing her mind. Merriam-Webster named “gaslighting” its 2022 word of the year after searches for the term rose 1,740 percent in a single year.
How Gaslighting Works
Gaslighting isn’t a single lie or a one-time disagreement. It’s a pattern of behavior designed to erode someone’s confidence in their own judgment. The person doing it may deny events that clearly happened, rewrite conversations, or insist the other person is remembering things wrong. Over time, the target starts to wonder whether their version of events can be trusted at all.
What makes gaslighting different from ordinary dishonesty is the intent to destabilize. A person who gaslights isn’t just covering up a mistake. They’re trying to shift the other person’s grasp on what’s real so they become easier to control. The manipulation often escalates gradually, which is part of why it’s so hard to recognize from the inside.
Common Tactics and Phrases
Gaslighting relies on a handful of recurring strategies:
- Trivializing: Dismissing your feelings with phrases like “You’re too sensitive,” “You’re overreacting,” or “It was just a joke.”
- Countering: Questioning your memory of events. “That never happened.” “You’re imagining things.”
- Withholding: Refusing to listen or pretending not to understand what you’re saying, which pushes you to second-guess yourself.
- Denial and forgetting: Claiming they never said something you clearly remember, or “forgetting” promises they made.
- Diverting: Changing the subject or attacking your credibility when you raise a concern. “Everyone else thinks you’re crazy” is a classic example.
- Stereotyping: Using social biases (gender, race, age) to frame your reactions as irrational. Researchers have argued that gaslighting is rooted not just in individual psychology but in social inequalities that make certain people’s perceptions easier to dismiss.
Other phrases that show up frequently include “You’re overthinking it,” “If you really cared about me, you wouldn’t even think that,” and “Nobody else has a problem with this.” These lines all share the same function: they redirect blame onto you for noticing something wrong.
The Three Stages
Psychologist Robin Stern, who has written extensively on gaslighting, describes it as unfolding in three stages.
In the first stage, disbelief, the gaslighting feels like an odd, isolated moment. Something your partner or boss says doesn’t add up, but you chalk it up to a misunderstanding. You might briefly wonder whether you’re being manipulated, but the incidents seem too small to take seriously.
In the second stage, defense, you start actively pushing back. You argue your case, insist you’re not “too sensitive,” and try to prove your version of events. But the conversations loop endlessly, replaying in your mind without resolution. This stage is exhausting because you’re spending enormous energy trying to be heard by someone who has no interest in listening.
By the third stage, depression, your sense of self has eroded significantly. You feel joyless, disconnected from friends, and barely recognize your own behavior. You may start looking for evidence that the gaslighter is right about you. At this point, many people have internalized the manipulation so deeply that they genuinely believe they’re the problem in the relationship.
Gaslighting at Work
Gaslighting isn’t limited to intimate relationships. Research from the University of Wisconsin found that roughly half of workers between ages 18 and 54 have experienced gaslighting in a professional setting. It often shows up in relationships where one person holds power over another, such as a manager and a direct report, or a mentor and mentee.
Workplace gaslighting can look like a boss deliberately leaving you off an email chain and then asking, “Didn’t you get that email?” It can look like being assigned one task and then berated for not completing a different, unassigned one. Coworkers who take credit for your work, question your memory of what was said in meetings, or accuse you of the exact behaviors they’re guilty of are all engaging in forms of gaslighting. A common red flag: being told you’re “too” something (too sensitive, too stressed, thinking too much) when you raise a legitimate concern about fairness.
Medical Gaslighting
Medical gaslighting happens when healthcare professionals dismiss, minimize, or invalidate your symptoms. According to Harvard Health Publishing, it can lead to missed diagnoses, delayed treatment, and poor health outcomes. It also damages trust in the healthcare system overall, making people less likely to seek care when they need it.
This form of gaslighting disproportionately affects women, people of color, and people with existing mental health diagnoses, whose physical symptoms are more likely to be attributed to anxiety or exaggeration. The consequences can be severe. Being given the wrong diagnosis or treatment because a provider didn’t take your concerns seriously is a form of harm that compounds over time.
Racial and Political Gaslighting
The concept has expanded well beyond one-on-one relationships. Racial gaslighting describes the use of psychological manipulation to deny, distort, or minimize someone’s experience of racism. It shows up both in personal interactions (“You’re reading too much into it”) and at the institutional level, where systemic problems like police brutality, poverty, and educational inequality get reframed as matters of “personal choice” rather than structural failure.
When systemic racism is consistently denied or minimized, people begin to view institutions like law enforcement, education, and healthcare as adversaries rather than sources of support. This erosion of trust mirrors the individual experience of gaslighting: reality gets rewritten so many times that the person questioning it starts to feel like the unreasonable one. Merriam-Webster’s editors noted that the term’s surge in popularity reflects an era defined by misinformation, conspiracy theories, and deepfakes, where manipulating someone’s view of reality has become a tool for political and personal gain.
How It Affects Your Mental Health
Long-term gaslighting does measurable psychological damage. People who’ve been gaslighted commonly experience chronic anxiety, depression, difficulty trusting their own perceptions, and a deep sense of isolation. Because gaslighting typically involves being cut off from outside perspectives (friends who don’t like your partner, coworkers who might validate your concerns), targets often feel profoundly alone by the time they recognize what’s happening.
The self-doubt that gaslighting creates can persist long after the relationship ends. Many people find themselves second-guessing ordinary decisions, seeking excessive reassurance, or feeling unable to identify what they actually want. These are normal responses to having your reality systematically undermined, not signs that something is fundamentally wrong with you.
Recovering From Gaslighting
The first step in recovery is rebuilding trust in your own perceptions. Sharing your experience with people who care about you can help reinforce the reality of what happened. A supportive network provides the validation that gaslighting specifically stripped away, and it counters the isolation that keeps the manipulation effective.
Therapy is one of the most effective tools for recovery. A mental health professional can help you understand the specific dynamics of what you went through, process the emotions tied to it, and develop healthier patterns in future relationships. The therapeutic relationship itself can serve as a corrective experience: someone listening to you, believing you, and treating your perceptions as valid.
Setting clear boundaries is essential, whether that means limiting contact with the gaslighter, cutting it off entirely, or refusing to engage in circular arguments. Boundaries also include insisting on respectful communication and prioritizing your own needs without guilt. Re-engaging with activities you enjoy and feel competent at helps restore the sense of self-worth that gaslighting erodes. Recovery isn’t instant, but it does happen, and naming the experience accurately is often where it begins.