Authors: Chloe A. Stewart; Derek G.V. Mitchell; Penny A. MacDonald; Stephen H. Pasternak; Paul F. Tremblay; Elizabeth Finger · Research

How Does Guilt Affect Your Body? New Insights into the Physical Experience of Feeling Guilty

Research reveals how feelings of guilt trigger distinct patterns of bodily responses, providing new understanding of this complex emotion.

Source: Stewart, C. A., Mitchell, D. G., MacDonald, P. A., Pasternak, S. H., Tremblay, P. F., & Finger, E. (2023). The psychophysiology of guilt in healthy adults. Cognitive, Affective, & Behavioral Neuroscience, 23, 1192-1209.

What you need to know

  • Guilt produces measurable physical reactions in the body that differ from other emotions
  • These reactions include changes in stomach activity, sweating, swallowing, and heart rhythm
  • Understanding guilt’s physical effects could help treat conditions involving excessive or diminished guilt

The Physical Side of Feeling Guilty

Have you ever felt that knot in your stomach after realizing you’ve hurt someone’s feelings? Or noticed your mouth going dry when overcome with guilt? These bodily sensations aren’t just in your head - they’re real physiological responses that scientists are now beginning to understand. While we know quite a bit about how basic emotions like fear and happiness affect our bodies, the physical impact of more complex emotions like guilt has remained largely mysterious until now.

How Scientists Studied Guilt

Researchers recruited 95 healthy adults and had them watch various video clips designed to evoke different emotions - including guilt, amusement, disgust, sadness, pride, and neutral states. Throughout the viewing, they measured several bodily responses:

  • Stomach activity
  • Sweating
  • Swallowing rate
  • Heart rhythm
  • Breathing rate

The guilt-inducing videos were paired with personalized feedback statements to make them more relevant to each participant (for example, “You donate less than the average Canadian” before a video about children in need).

What Makes Guilt Physically Different

The study found that guilt produces a unique pattern of bodily responses that distinguishes it from other emotions. Some key findings included:

  • Altered stomach rhythms compared to all other emotions tested
  • Decreased sweating compared to emotions like amusement and pride
  • Lower swallowing rate compared to disgust and sadness
  • Changes in heart rhythm variability suggesting increased focus and emotional regulation

This pattern shows that guilt involves a complex mix of activation in both the “fight-or-flight” and “rest-and-digest” branches of our nervous system.

Guilt vs. Other Negative Emotions

One particularly interesting finding was how guilt differs physically from related negative emotions like sadness and disgust. For instance, people swallow less frequently when feeling guilty compared to feeling sad or disgusted. This may be because sadness often involves fighting back tears (requiring more swallowing), while disgust can trigger nausea (producing excess saliva that needs to be swallowed).

What This Means for You

Understanding guilt’s physical signature has several practical implications:

  • It validates that guilt is not “just in your head” but has real bodily effects
  • It could help develop better treatments for conditions involving problematic guilt (like OCD or PTSD)
  • It might aid in identifying when guilt is becoming excessive or unhealthy
  • It suggests that techniques targeting physical responses (like deep breathing) might help manage guilty feelings

Conclusions

  • Guilt produces distinct physical changes in the body that set it apart from other emotions
  • These changes involve complex patterns of nervous system activation
  • This knowledge could lead to better treatments for conditions involving problematic guilt
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