Each autumn, as the shofar pierces the air, Jewish communities around the world enter the Days of Awe — ten days of reflection, reconciliation, and renewal stretching from Rosh Hashanah to Yom Kippur. These sacred days remind us of our mortality, call us to repair relationships, and invite us to return to our truest selves.
We often think of the High Holy Days as exclusively spiritual. But research from psychology and medicine suggests that the practices at the heart of this season — confession, forgiveness, repentance, and reconciliation — also carry profound benefits for physical health, emotional well-being, and even happiness.
The weight of guilt and stress
Carrying unresolved guilt and broken relationships is not only spiritually draining; it is physically toxic. Studies in psychoneuroimmunology show that chronic guilt and rumination elevate stress hormones like cortisol, increase blood pressure, and weaken immune responses. Psychologists call this “allostatic load”: the cumulative wear and tear on the body caused by unrelenting stress.
One study published in Journal of Behavioral Medicine found that people who habitually ruminate on regrets had higher markers of inflammation, a known risk factor for heart disease. Our sages anticipated this link long ago: “Worry in a man’s heart bows it down” (Proverbs 12:25). The burdens of conscience, when unaddressed, manifest in the body.
Forgiveness as medicine
At the heart of Yom Kippur is forgiveness — both giving and receiving. We confess our shortcomings before God and seek to repair our relationships with others. Far from being only a ritual act, forgiveness has measurable health effects.
A meta-analysis in Journal of Health Psychology reported that individuals who score higher on forgiveness measures have lower blood pressure, fewer depressive symptoms, and stronger immune function. In another study from Annals of Behavioral Medicine, forgiveness was directly linked to improved mental health and greater life satisfaction.
The mechanism is straightforward: forgiveness calms the body’s stress response. Letting go of resentment reduces activation in the amygdala, the brain’s threat center, and increases activity in areas of the prefrontal cortex associated with empathy and regulation. In plain terms, forgiving others makes us healthier and happier.
Emotional healing through teshuvah
The Hebrew word teshuvah means “return” — returning to God, to our values, and to our best selves. Modern psychology affirms that self-forgiveness, a critical part of teshuvah, is associated with decreased anxiety and greater resilience.
Research from the University of Michigan found that people who practiced self-forgiveness reported higher levels of well-being and optimism, and were less prone to depression. Self-forgiveness is not denial of wrongdoing; it is acknowledgment followed by self-compassion and constructive change. That mirrors the High Holy Day process: honest confession, heartfelt remorse, and the resolve to do better.
Rituals that reset the body and spirit
Our tradition gives us concrete rituals — fasting, prayer, communal confession — that are surprisingly aligned with modern insights into health. Fasting, when practiced appropriately, has been linked in clinical research to improved insulin sensitivity, reduced inflammation, and clearer mental focus. Prayer and meditation activate the parasympathetic nervous system, slowing heart rate and lowering blood pressure.
Just as important, the High Holy Days embed these practices in community. Confessing our failings together lessens shame, normalizes vulnerability, and strengthens bonds. Social connection itself is one of the strongest predictors of health and longevity, as shown in the Harvard Study of Adult Development, now spanning more than 80 years.
A pathway to joy and well-being
Many years ago, I was asked to officiate at the funeral of a Russian immigrant. He wife said he loved the Jewish holidays. Her response to my question about his favorite was a bit puzzling: “He loved Yom Kippur.” We don’t usually associate Yom Kippur with joy, but perhaps we should. When the day ends, tradition tells us, we are like newborns — cleansed, unburdened, ready to live again. In their 2004 Psychology and Health article, Worthington and Scherer noted that forgiveness is correlated with higher happiness, life satisfaction, and even meaning in life.
In fact, surveys show that people who actively cultivate forgiveness and reconciliation report greater positive affect and subjective well-being. What our tradition has taught for centuries — that reconciliation leads to renewal — is now borne out in scientific data.
Practical suggestions for the High Holy Days
This year, as you enter the synagogue or gather with family, consider not just the spiritual meaning but also the health potential of this season.
Reach out early: Make amends with someone before Yom Kippur. You may find your mood lightens, and even your body feels more at ease. This is traditionally done in Elul, the month preceding the High Holy Days on the Jewish calendar.
Practice self-forgiveness: Write down a regret, acknowledge it honestly, then commit to change. Psychology shows this can reduce shame and increase resilience.
Use prayer as meditation: Slow your breathing during the Amidah or the Vidui. Notice how your body settles.
Value community: Remember that confessing together is a source of strength, not weakness. Social connection buffers stress and enhances well-being.
Celebrate renewal: When the fast ends, embrace not only physical relief but also the joy of a fresh start.
The shofar’s call
The shofar blast at Rosh Hashanah is often described as a spiritual alarm clock. But perhaps it is also a call to health — to awaken not only our souls, but also to free our bodies and minds from the corrosive effects of resentment and regret.
The High Holy Days remind us that forgiveness is not indulgence; it is medicine. Teshuvah is not only about returning to God; it is about returning to wholeness. When we release grudges, we unburden our hearts. When we reconcile, we heal our bodies. And when we forgive — ourselves and others — we rediscover joy.
May this season bring you sweetness, renewal, and the blessing of health in body, mind, and spirit.
Shana Tova U’metukah.
Rabbi Bruce D. Forman is a Weston-based psychologist practicing behavioral sleep medicine remotely. He is the author of the forthcoming book “For God’s Sake Go to Sleep: Insights About Sleep from Jewish Tradition & Modern Science.”
