461: Stress Overload, Decision Fatigue, and Why Your Runs Feel So Hard

When your runs start feeling harder than they “should,” most runners immediately assume the problem is their fitness.

They think they need more motivation. More mileage. More discipline. More speed work.

But what if the issue isn’t your training plan at all?

What if your body is simply carrying too much?

In this week’s episode of the Real Life Runners Podcast, Kevin and I are talking about something that affects nearly every runner—especially women balancing careers, families, responsibilities, and constantly full mental plates—but rarely gets discussed in a meaningful way:

Stress overload and decision fatigue.

Because your body doesn’t separate “life stress” from “training stress.”

It all counts.

Poor sleep.
Emotional load.
Constant notifications.
Overflowing calendar.
Endless decisions.
Workouts.
Pressure you put on yourself.
Mental load and chatter.
Worry about pace, consistency, nutrition, recovery, and whether you’re “doing enough.”

It all goes into the same bucket.

And when that bucket gets too full, your running often becomes one of the first places you notice it.

Your Stress Bucket Is Probably Fuller Than You Realize

One of the most important concepts we discuss in this episode is the idea of the “stress bucket.”

Your body is the bucket, and all types of stress, no matter what kind, goes into the same bucket. Imagine every type of stress in your life pouring into the same container.

Your body does not categorize stress as “good” or “bad.” It doesn’t care whether the stress is coming from marathon training, an argument with your spouse, caring for aging parents, sitting in traffic, doom-scrolling social media, under-fueling, poor sleep, or a busy work season.

Physiologically, your nervous system still has to process all of it.

Many runners underestimate just how much hidden stress they’re carrying because they’ve normalized functioning in a chronically overloaded state.

This is especially common in high-achieving runners and women over 40.

So many women have spent decades being praised for pushing through exhaustion, multitasking constantly, caring for everyone else first, and overriding their body’s signals. 

Then perimenopause enters the picture, hormones begin shifting, sleep changes, recovery becomes less efficient, brain fog increases, and suddenly the strategies that used to work… stop working.

Not because you’re failing…because your body is asking for a different approach.

The Sneaky Signs Of Stress Overload

Stress overload doesn’t always show up dramatically.

Sometimes it looks like:

• Easy runs suddenly feeling hard
• Increased irritability or emotional sensitivity
• Trouble sleeping even though you’re exhausted
• Getting sick more often
• Persistent soreness
• Lack of motivation
• Feeling overwhelmed by small tasks
• Craving sugar or comfort foods at night
• Difficulty recovering between workouts
• Constantly second-guessing yourself
• Feeling mentally “fried” by the end of the day

And one of the biggest mistakes runners make is assuming they just need to “push through.”

But when your nervous system is overloaded, adding more intensity often makes things worse.

Your body isn’t asking for punishment.

It’s asking for regulation and recovery.

Decision Fatigue Is Quietly Draining Your Energy

Every single day, your brain is making thousands of decisions.

What time should I wake up?
Should I run before work or after?
What should I eat?
Do I have enough time?
Should I do speed work today?
What if I skip the workout?
Am I doing enough?
Should I sign up for the race?
What pace should I aim for?
What does my watch data mean?

By the time evening rolls around, your brain has often used up much of its cognitive energy.

This is why you can feel completely capable and motivated in the morning… but by 7 PM, even deciding what to eat for dinner feels overwhelming.

Decision fatigue isn’t laziness or lack of discipline.

It’s cognitive depletion.

And when your brain is depleted, it naturally starts looking for shortcuts. That’s when you’re more likely to skip workouts, avoid difficult tasks, numb out on your phone, emotionally eat, or spiral into indecision.

The problem is that many runners interpret this as a personal flaw (it’s not) instead of a physiological reality (it is).

Stress + Decision Fatigue Create A Vicious Cycle

Stress overload and decision fatigue feed off each other.

The more stressed you are, the harder decision-making becomes.

And the more mentally exhausted you become, the less capacity you have to manage stress effectively.

This creates a cycle that can quietly destroy consistency.

You stop trusting yourself.
You overthink your training.
You feel guilty when you miss workouts.
You try to “make up for it.”
Your stress increases even more.
Running starts to feel heavy instead of freeing.

This is one of the reasons why so many runners feel stuck even when they’re technically “doing all the right things.”

Because performance is not just physical.

It’s neurological, hormonal, emotional, and mental too.

Imagine your energy is like a bank account

Every stressor in your life is a withdrawal.

Every recovery practice is a deposit.

The problem is that many runners are constantly withdrawing without replenishing enough.

Hard workouts.
Busy schedules.
Poor sleep.
Mental overload.
People-pleasing.
Constant productivity.
Overcommitting.

Eventually, your body sends a message: insufficient funds.

And often that message shows up as fatigue, burnout, injury, anxiety, emotional reactivity, or workouts that suddenly feel terrible.

Recovery is not optional if you want sustainable performance.

It’s the thing that allows adaptation to happen.

The 3-Lever Framework To Reduce Overwhelm

In this episode, Kevin and I share a simple framework runners can start using immediately.

1. Reduce The Number Of Daily Decisions

One of the fastest ways to reduce mental fatigue is to create systems.

Automate what you can.

Lay out your running clothes ahead of time.
Repeat simple breakfasts and lunches.
Use structured training plans.
Simplify your routines.
Create rhythms instead of constantly relying on motivation.

Every decision you remove preserves energy for the things that actually matter.

This is one reason our members often feel relief when they join the Team They stop carrying the constant burden of figuring everything out alone.

They have guidance. Structure. Support. A plan that adapts to real life.

That matters more than people realize.

2. Make Important Decisions Earlier

Your cognitive energy is usually strongest earlier in the day.

That means your hardest workouts, biggest decisions, planning sessions, or emotionally demanding tasks should ideally happen before your stress bucket fills up.

For many runners, evening workouts feel impossible not because they’re lazy—but because they’ve already spent their mental energy budget.

This is also why “I’ll just decide later” often backfires.

Later-you is usually more exhausted.

Make the big decisions when you have the energy and higher cognitive ability.

3. Build Real Recovery Into Your Life

Unlike what some people think, recovery is not just sitting on the couch scrolling your phone.

Real recovery helps regulate the nervous system.

That may include:

• Prioritizing sleep
• Taking walks outside
• Quiet time without stimulation
• Breathwork or meditation
• Mobility work
• Reading
• Gentle movement
• Time in nature
• Unstructured rest
• Saying no more often
• Recovery weeks in training

Many runners fear recovery because they think slowing down means losing fitness.

But recovery is where adaptation actually happens.

Without recovery, your body never gets the signal that it’s safe enough to rebuild.

So make sure you’re actually recovering…both physically and mentally.

Some Runs Feel Hard Because Life Feels Heavy

This part is important.

Sometimes your run feels hard not because your training is failing…

…but because your nervous system is overloaded.

That distinction matters.

Not every difficult run means you’re out of shape. Sometimes it means your body is asking for compassion, flexibility, and support.

This is where nervous system awareness becomes so important.

Instead of constantly forcing yourself to hit the original plan no matter what, ask:

“What does my body actually need today?”

Maybe that’s an easier run.
Maybe it’s extra fuel.
Maybe it’s sleep.
Maybe it’s a recovery day.
Maybe it’s removing pressure entirely.

Adjusting isn’t weakness.

It’s wisdom.

Listen To The Full Episode

If this resonates with you and you’ve been feeling exhausted, overwhelmed, inconsistent, or frustrated that running suddenly feels harder than it used to, this episode will help you understand why.

Kevin and I break down the science behind stress overload and decision fatigue, how it impacts your nervous system and running performance, and the practical shifts you can start making right away to feel better physically and mentally.

Building A Sustainable Running Life

At Real Life Runners, we believe your training should support your life—not consume it.

You should not have to sacrifice your mental health, relationships, hormones, recovery, or nervous system in order to become a stronger runner.

The goal is not to constantly push harder.

The goal is to build a sustainable relationship with running and with yourself.

One rooted in awareness instead of punishment.

One that allows you to perform well while still feeling like a human being.

Because the strongest runners are not the ones who ignore stress the longest.

They’re the ones who learn how to work with their body instead of constantly fighting against it.

And that changes everything.

Ready to start doing things differently and get the plans, coaching, and support you really need? 

Join the Team.