Why You Crash at 3:00 PM — and What Your Body Is Trying to Tell You

By Erin Vandermore, LCMHC-S

Creator of Mind Circuit + Brain Flossing™

The holidays are supposed to feel magical.

But if we’re being honest, they also stir up… a lot.

Family expectations.

Travel.

Money pressure.

Memories you didn’t ask for.

Kids are home from school.

Work deadlines that refuse to slow down.

And in the middle of all of that, your nervous system is whispering (or yelling):

“Hey… remember me?”

This season, I want to gently remind you of something your Guard Dog Brain already knows:

You deserve to be kind to yourself.

Not when you “earn it.”

Not on January 1st.

Not after the to-do list is done.

Right now.

With the body you have.

With the story you carry.

Let me explain why that mid-afternoon crash you keep having is not a personal failure—it’s biology.

The Yerkes–Dodson Curve (In Human Words)

Instead of throwing science at you, let’s make it simple.

Imagine a hill.

At the bottom of the hill, you feel sluggish.

Half-awake.

Not motivated.

This is low arousal.

As you climb the hill, your energy rises.

Your brain clicks in.

You feel focused, capable, even proud.

This is the sweet spot where your nervous system performs well.

Now, picture going over the top of the hill.

On the other side, things start to fall apart.

You feel scattered.

Overwhelmed.

Anxious.

Snappy.

Foggy.

Exhausted.

This is too much arousal—your Guard Dog Brain is working overtime.

And if you stay there all day?

By 3:00 PM, you crash.

Hard.

Your brain and body collapse into “I’m done” mode.

This is what the Yerkes–Dodson Law teaches us:

A little stress helps us function.

Too much stress shuts us down.

It’s not you.

It’s not laziness.

It’s your biology waving a red flag.

Why Adults Hit the 3:00 PM Wall (Especially During the Holidays)

Most adults start the day already over the curve.

You wake up thinking about:

“What do I need to get done?”

“What am I forgetting?”

“Who needs me?”

“What will today throw at me?”

Your Guard Dog Brain is already pacing before your feet hit the floor.

By noon, you’ve handled a hundred micro-stressors you didn’t even notice:

• noise
• email pings
• kid emotions
• holiday expectations
• social pressure
• memories
• the sheer logistics of being a human

Your system is sprinting.

So yes—by 3:00 PM, your body hits a natural shutdown.

It’s a survival response.

Your nervous system is trying to keep you alive, not productive.

Why Ignoring Your Body Never Helps

Many of us were raised to push through.

Work harder.

Do more.

Don’t feel.

Don’t need.

Don’t rest.

But here’s the truth I tell my clients all the time:

Your body will whisper until it has to scream.

Ignoring your exhaustion doesn’t make it go away—it just delays the crash.

And when we ignore our body long enough, the Guard Dog Brain takes over completely:

• anxiety
• irritability
• shutdown
• spirals
• tears in the bathroom
• snapping at people you love
• numb scrolling
• “I just want to be alone.”
• migraines
• stomach issues
• insomnia

Your body isn’t betraying you.

It’s trying to protect you.

You deserve to listen.

Three Small, Nervous-System-Safe Steps You Can Try Today

These are tiny.

Gentle.

Doable.

Holiday-proof.

1. Take a 60-second Brain Floss Break™

Cross-body movements.

Butterfly tapping.

Or open the Mind Circuit App and tap the Calm Me Now button.

One minute of bilateral stimulation tells your Guard Dog Brain:

“We’re safe.”

2. Pause before the crash

Set a 2:30 PM reminder to check in.

Ask:

“Where am I on the curve right now?”

If you’re already sliding over the edge, a 30-second reset can stop the crash.

3. Tell yourself the truth

Try this:

“My body is speaking.

I’m allowed to listen.”

Self-kindness isn’t indulgent.

It’s a regulation.

You Deserve a Holiday That Doesn’t Hurt Your Nervous System

Not a perfect one.

Not a hyperproductive one.

Not a “prove-your-worth” one.

A holiday where you get to feel:

• safe
• grounded
• human
• supported
• like your body isn’t the enemy
• like you’re allowed to take up space

If you’re carrying a lot this season, I want you to know:

You’re not alone.

There is nothing wrong with your nervous system.

Your system is doing its best with what it has.

And you—yes, you—deserve to rest, reset, and be gentle with yourself.

One micro-step at a time.

One Brain Floss at a time.

One nervous system moment at a time