The Health Benefits of Forgiveness: How Letting Go Supports Your Body and Mind

Forgiveness may not be the first thing that comes to mind when you think about improving your health—but it plays an important role in both emotional and physical well-being. When we carry resentment, anger, or guilt, our bodies read those emotions as ongoing stress signals, keeping us in a subtle but constant state of tension that can affect how we feel day to day—and over time, our overall health.

How Forgiveness Reduces Stress and Cortisol

Research in positive psychology and behavioral medicine shows that forgiveness is linked to lower levels of anxiety, depression, and perceived stress. According to Fred Luskin, practicing forgiveness can reduce anger, improve cardiovascular function, and increase overall well-being. Psychologist Everett Worthington has also shown that structured forgiveness practices can significantly lower cortisol—the body’s primary stress hormone.

Why does this matter? Chronic elevations in cortisol—the body’s primary stress hormone—are associated with inflammation, impaired immune function, disrupted sleep, and increased risk of chronic disease. Research from American Psychological Association consistently highlights how prolonged stress contributes to nearly every major chronic illness.

Forgiveness works, in part, because it signals safety to the body. As resentment softens, the nervous system can shift out of “fight or flight” and into a more regulated, restorative state—supporting healing at a cellular level.

Self-forgiveness is equally powerful. Persistent self-criticism keeps the stress cycle active, while self-compassion has been shown to lower cortisol and improve emotional resilience.

A Simple Forgiveness Practice to Let Go

Try writing a forgiveness letter—one you won’t send. Choose a person (or yourself) and write honestly about what happened and how it affected you. Let it be unfiltered. Say the things you’ve been holding. Then, if it feels right, add a line of intention such as: “I’m ready to release this.”

When you’re finished, instead of sending it, consider physically letting it go—tear it up, shred it, or even burn it safely. That act can create a powerful sense of closure, signaling to your mind and body that you’re no longer carrying this weight.

This kind of expressive writing has been shown to reduce stress, improve emotional processing, and even support immune function. Researchers like James Pennebaker have demonstrated that putting emotions into words helps regulate the nervous system and decrease the physiological burden of stress.

Forgiveness isn’t about condoning what happened. It’s about freeing your body from carrying it.

Because better health isn’t always about adding more—sometimes, it’s about releasing what weighs you down.