WHY GRIEF HURTS
Understanding the brain in loss
Grief is one of the most universal human experiences, yet it remains deeply personal and often misunderstood. Many people ask: Why does grief feel like physical pain? Why can’t I think clearly while grieving? Can grief actually change the brain? The human brain is hardwired to form attachments. It keeps track of our closest relationships through space, time, and emotional connection. When we are separated from loved ones, the brain maintains these bonds by predicting when, where, and whether reunion is likely to happen.
These dimensions can be described as here, now, and close — our ability, developed during childhood, to comfort ourselves by mentally holding onto the image of someone we love and trusting that we will reconnect. During grief, the brain areas responsible for regulating emotion and pain become highly active. This is why the loss of a loved one can feel like literal physical pain. The term “broken heart syndrome” is not just a metaphor — the brain processes emotional loss through many of the same pathways involved in physical pain.
At the same time, the brain experiences cognitive suppression, reducing our ability to think clearly, plan, and concentrate. This is why many grieving people experience “brain fog,” forgetfulness, exhaustion, and difficulty focusing. As the brain slowly tries to make sense of the loss, it begins redrawing the neural pathways connected to the relationship.
As the brain slowly tries to make sense of the loss, it begins redrawing the neural pathways connected to the relationship. Older neural maps still expect the person to be here, now, and close. This is why people may instinctively reach for the phone to call a loved one, momentarily forget they are gone. Each time reality confronts these outdated predictions, the brain gradually updates itself. You are not “going crazy” — your brain is rewiring itself in response to loss.
During this vulnerable time, it is important to keep supportive people close and communicate your needs clearly. Allow yourself to feel your emotions rather than suppressing them, and give yourself permission to cry and grieve. Preparing emotionally for anniversaries, birthdays, and holidays may also help, as these moments can trigger unexpected waves of grief. Mindfulness and self-care can support healing. Gentle exercise, journaling, spending time in nature, connecting with others, or engaging in creative activities can help regulate the nervous system and support emotional recovery.
Moving forward does not mean forgetting the person you lost. It means learning to carry their memory differently while continuing to live, grow, and honor the love that remains.
