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How Triathlon Trained Me For Triumph Over Cancer

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Your Body Isn’t a Temple; It’s a Training Ground for Life’s Biggest Challenges

June 20, 2025 by Dr. Jeffrey Reynolds
Category: Training & Racing

How we think about our bodies fundamentally shapes how we live in them, care for them, and ultimately, what we expect from them when life gets tough.

I used to roll my eyes when people said “your body is a temple.” The phrase always struck me as pretentious, conjuring images of people who wouldn’t dare eat a french fry or skip a day at the gym. After two cancer diagnoses and hundreds of hours of chemotherapy, radiation, and recovery, I’ve come to believe something different: your body isn’t a temple—it’s a training ground.

Temples are pristine, protected places where nothing messy is supposed to happen. Training grounds, on the other hand, are where you get dirty and sweat, where you fail repeatedly, where you push the limits and sometimes break things in the process of getting stronger. That applies to relationships too, cancer revealed who was truly willing to get messy alongside me. Training grounds are where you prepare for battles you can’t yet fathom.

This isn’t just semantics.

How we think about our bodies fundamentally shapes how we live in them, care for them, and ultimately, what we expect from them when life gets tough.

The Temple Trap

The “body as temple” mindset creates an impossible standard. Temples don’t get cancer. They don’t break down at inconvenient times or rebel against our best intentions. They don’t betray us by harboring tumors despite our perfect diets and religious exercise routines.

When we treat our bodies like temples, we become devastated when they inevitably prove mortal. We feel betrayed when our temple shows cracks, develops problems, or simply ages. We invest so much in the myth of bodily perfection that we’re completely unprepared for the reality that one day our bodies will fail.

I was in the best shape of my life when cancer found me—twice. I was swimming, biking and running regularly, eating well and sleeping well. And yet, if not for routine screenings, I might never have known it was there. That story is here. If bodies were temples, mine should have been Parthenon.

But cancer doesn’t care about your 5K time or your clean eating habits. Disease, injury, and aging are equal opportunity visitors. The temple mindset left me asking the wrong questions: How could this happen to me? What did I do wrong? Was fitness really a waste of time?

Training Ground Mentality

A training ground mentality changes everything. Training grounds are where you practice getting punched in the face and getting back up. They’re where you learn that strength isn’t about avoiding damage – it’s about progressively building resilience to handle whatever comes next.

When you view your body as a training ground, every challenge becomes preparation for something bigger. That nagging injury teaches you about pain management and listening to your body’s signals. The sleepless nights train you for future crises when rest will be elusive. Even something as mundane as pushing through the last mile of a difficult run builds the mental fortitude you’ll need when facing treatment side effects when you cancer or some other medical condition knocks on your door.

Training grounds are messy places where failure is expected and improvement happens incrementally. They’re where you learn that your body’s primary job isn’t to look good or perform perfectly—it’s to carry you through whatever life throws your way.

The Difference in Crisis

This mindset shift becomes crucial when real challenges hit. When I was diagnosed with cancer, I felt a little betrayed by my body, but I powered through. All those early morning workouts when I didn’t want to train had taught me to show up anyway. The countless times I’d pushed through discomfort during long races had prepared me for the discomfort of treatment.

Ultimately, I came to understand that my body wasn’t failing me; it was applying everything we’d practiced together. The cardiovascular fitness built during triathlon training helped me tolerate chemotherapy better. The mental toughness developed during 100-mile bike rides translated directly to sitting still for six-hour infusion sessions. The discipline learned through consistent training became the foundation for sticking with treatment protocols even when the side effects made me miserable.

Most importantly, treating my body as a training ground meant I wasn’t shocked when it needed some repair. Training grounds require maintenance, occasional downtime, and sometimes major renovations. That’s not failure; it’s standard operating procedure.

Training for the Unknown

The crazy, but beautiful thing about the training ground mentality is that you’re never really sure what you’re training for. You build strength, endurance, and resilience not because you know you’ll need them for cancer specifically, but because you know life will eventually test you somehow.

Maybe your test will be illness. Maybe it’ll be caring for aging parents, surviving job loss, or enduring divorce. Maybe it will be all those things. Maybe it’ll be something you can’t imagine yet. The specific challenge matters less than your body’s and your mind’s ability to meet it with grace, determination, and the quiet confidence that comes from having been tested before.

This doesn’t mean we should punish our bodies or ignore basic health principles. Training grounds still require proper maintenance, adequate rest, and intelligent programming. But it means approaching physical fitness as preparation for life’s inevitabilities rather than insurance against them.

Embracing the Mess

Your body will disappoint you. It will break down at inconvenient times, develop problems despite your best efforts, and remind you daily that you’re mortal. If you’re treating it like a temple, these realities will devastate you.

But if you’re treating your body like a training ground – a sacred place where you build strength, practice resilience, and prepare for unknown challenges – then every setback becomes valuable preparation. Every scar tells a story of survival. Every limitation teaches adaptation. You get better and stronger.

The goal isn’t perfection; it’s readiness. Not for any specific challenge, but for the certainty that challenges will come. Even so, crossing the so-called finish line wasn’t quite what I expected. Here’s what ringing that bell felt like.

So stop worshipping your body and start training it. Stop trying to protect it from all harm and start preparing it for inevitable harm. Your body isn’t a delicate temple to be preserved; it’s a resilient training ground where you’re preparing for the most important competition of all: the rest of your life.

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