🔍 What Happens to You When You Lie Constantly?

By Linda C J Turner, Therapist & Advocate

đź§  1. Neurologically: Your Brain Adapts… and Deteriorates

⚡ Amygdala Desensitization

  • The amygdala triggers emotional responses like guilt, fear, or moral discomfort when we lie.
  • Over time, repeated lying dulls the amygdala’s response — the liar feels less guilt, less fear, less empathy.
  • This creates a kind of emotional numbing that makes lying easier — but also reduces emotional connection and empathy.

đź§© Prefrontal Cortex Overload

  • The prefrontal cortex, responsible for logic, self-control, and planning, works overtime to manage lies:
    • Who did I tell this lie to?
    • What version of the story did I give?
    • How do I keep this from being exposed?
  • This leads to:
    • Cognitive fatigue
    • Heightened anxiety
    • Reduced decision-making ability
    • Increased irritability or mood swings

Eventually, the brain struggles to distinguish truth from fiction — leading to confusion, paranoia, and sometimes even delusional thinking.


đź§  2. Psychologically: Fragmentation of the Self

Constant lying creates a false self. A persona. A mask.

Behind that mask:

  • There’s shame, often dating back to childhood trauma.
  • There’s a fear of not being accepted as the real self.
  • There’s a need to control perception and avoid vulnerability.

This psychological fragmentation can lead to:

  • Anxiety and depression
  • Chronic stress
  • Imposter syndrome
  • A feeling of being “lost in your own life”
  • Inability to form deep, trusting relationships

The more someone lies, the more they detach from their core identity â€” until they no longer know who they truly are.


đź’Ą 3. Behavioral Changes & Personality Shifts

Pathological lying alters how someone behaves in the world. You might see:

  • Increased defensiveness or aggression when confronted
  • Gaslighting or manipulation to protect the lie
  • Blame-shifting to avoid responsibility
  • Control-seeking behavior (need to dominate conversations, narratives, or relationships)

Over time, these patterns can become entrenched and resemble narcissistic or sociopathic traits â€” even if the person didn’t start out that way.


🧬 4. Physical Health: Chronic Lying = Chronic Stress

Lying triggers a stress response in the body.
Even if the person has become numb emotionally, the body keeps score.

The result?

  • Increased cortisol levels (stress hormone)
  • Weakened immune system
  • Digestive issues
  • High blood pressure
  • Tension headaches, migraines
  • Sleep disturbances or insomnia
  • Fatigue or burnout

Lying literally keeps the body in a constant state of “fight or flight”, especially when lies are used to cover up harmful behavior.


🔄 5. Relationship Damage & Social Isolation

The more someone lies:

  • The harder it becomes to form genuine relationships.
  • Friends, partners, even colleagues begin to pull away once they sense the dishonesty.
  • Eventually, the person finds themselves isolated, surrounded by people who either don’t know the truth — or who have been manipulated into silence.

This isolation increases:

  • Depression
  • Resentment
  • Paranoia (“Who knows? Who’s still on my side?”)

🌪️ In Summary: What Constant Lying Does to a Person

  • Brain: Desensitized, confused, anxious
  • Mind: Fragmented, lonely, unstable
  • Body: Exhausted, inflamed, stressed
  • Behavior: Manipulative, avoidant, reactive
  • Relationships: Distant, broken, based on control instead of connection

🌱 Can a Chronic Liar Heal?

Yes — but only if they are willing to face the truth.

Healing requires:

  • Radical honesty with self
  • Therapy to uncover the roots of the deception
  • Accountability without excuses
  • Reconnecting with the real self underneath the mask

Because behind every compulsive liar is usually a wounded child who learned that truth wasn’t safe.
But healing begins when that child is finally allowed to speak the truth without fear.


— Linda C J Turner

Trauma Therapist | Neuroscience & Emotional Intelligence Practitioner | Advocate for Women’s Empowerment

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