Why Anniversaries Affect Us So Deeply
Beyond the Session | Clinical insights from a grief therapist.
There are certain dates that can stop us in our tracks.
A birthday. An anniversary. Mother's Day. Christmas. The day everything changed.
You might notice yourself becoming more emotional in the days leading up to it without immediately understanding why. You may feel more anxious, irritable or exhausted. Concentration becomes difficult. Sleep changes. You find yourself thinking about someone more than usual.
Then you glance at the calendar.
"Of course."
Anniversary reactions are one of the most common experiences I see in therapy, yet many people are surprised by the intensity of them. They wonder, "I thought I was doing better. Why does this still affect me?"
The truth is, there is nothing unusual about it.
It's how our brains are designed.
Your brain remembers more than your mind does
When we experience a significant loss, our brain doesn't simply store the memory as a story.
It stores the sights, sounds, smells, emotions and physical sensations associated with that experience.
The brain's memory systems, particularly the hippocampus and amygdala, work together to help us remember emotionally significant events. This is adaptive. Our brains are wired to pay close attention to experiences that have deeply affected us.
As an anniversary approaches, subtle reminders begin to activate these memory networks.
Sometimes it's conscious.
"It's almost Dad's birthday."
Other times it's completely outside our awareness.
The weather feels the same.
A familiar song plays.
The scent of spring returns.
The light changes in the afternoon.
Before we consciously recognise the date, our nervous system often already has.
Grief isn't only emotional- it's physiological
Many people expect grief to feel like sadness.
But grief often shows up in the body first.
You may notice:
Feeling unusually tired.
Increased anxiety or restlessness.
Difficulty concentrating.
Changes in appetite.
Feeling emotionally sensitive.
Becoming overwhelmed more easily.
Wanting to withdraw from others.
These are not signs that you're "going backwards."
They are signs that your nervous system is responding to something that has deep emotional significance.
Grief lives in both the mind and the body.
Why it can feel like you've gone backwards
One of the biggest fears people share is:
"I thought I'd healed."
Healing isn't measured by whether you never feel grief again.
Healing is learning to carry grief differently.
An anniversary doesn't erase the progress you've made.
It simply brings your loss back into sharper focus for a moment.
Think of grief less like climbing a mountain and more like the tide.
Most days the water sits further out.
Then, on certain dates, it comes closer to shore.
Eventually, it recedes again.
Neither state is permanent.
You don't have to avoid the day
People often ask me whether it's better to keep busy or acknowledge the anniversary.
There isn't one right answer.
For some people, creating space to remember feels comforting.
For others, maintaining routine provides a sense of stability.
What matters most is choosing intentionally rather than feeling pressured to "do it properly."
You might choose to:
Visit a meaningful place.
Light a candle.
Cook their favourite meal.
Look through photographs.
Write them a letter.
Spend time with people who understand.
Or simply acknowledge that today feels harder than usual.
There is no correct way to remember someone you love.
If this anniversary feels especially difficult
Be gentle with yourself.
Lower your expectations for the day.
Prioritise sleep, nourishing meals and moments of rest.
Say no to unnecessary commitments if you need to.
Reach out to someone you trust.
And remind yourself that difficult days don't last forever.
The intensity of an anniversary reaction isn't a measure of how "well" you're coping.
It's often a reflection of how deeply you loved.
A final thought
Grief has a remarkable way of reminding us that love doesn't simply disappear because someone is no longer physically present.
Anniversaries aren't setbacks.
They're milestones that invite us to pause, remember, and honour the relationship that continues to shape who we are.
If today feels heavier than yesterday, know that you're not doing grief incorrectly.
You're simply being human.
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If you're navigating grief and would like personalised support, you can learn more about working together through Mind Care Avenue or explore the free resources available on the website. Wherever you are in your journey, you don't have to carry it alone.