The Science of Saying Goodbye
Grief after losing a pet isn’t just emotional — it’s physical. Learn about the science behind grief, and why your body and mind need compassion during healing.
Why Loss Feels So Heavy
When a pet dies, our hearts break — but so do our brains. Research shows that the bond we form with animals activates the same neural pathways as our closest human relationships. When that bond is severed, our body reacts as though we’ve lost a family member — because we have.
The stress hormone cortisol rises, sleep can become disrupted, and even the immune system weakens temporarily. These physical changes are the body’s way of processing emotional trauma.
Grief Is a Whole-Body Experience
You may notice:
• Difficulty sleeping or eating
• A sense of “fog” or distraction
• Fatigue or tension
• Changes in appetite
• Sudden waves of sadness or anger
None of this means you’re handling grief wrong — it means your brain and body are adjusting to a world that feels emptier.
The Healing Process
Over time, the intensity of grief lessens. New neural pathways form, helping you carry your love in memory rather than routine. Healing doesn’t mean forgetting; it means learning to live with love in a new form.
You can support your healing through gentle self-care: rest, nutrition, journaling, talking to understanding friends, or connecting with a grief counsellor.
Understanding Brings Compassion
Knowing that grief is biological can ease guilt or confusion. You’re not “too sensitive.” You’re human — and your love for your pet was real, measurable, and worth every tear.
If you’re struggling with the physical or emotional weight of grief, our team at Horizon Palliative Vets can connect you with resources and certified counsellors who specialise in pet loss. You are not alone — and healing is possible.