The Body Keeps the Tab

Last month, I went to the hospital to have my knee checked.

While waiting in the registration line, I saw an elderly gentleman standing in front of me. His back was as straight as a ramrod, and he looked to be in his early sixties. When it was his turn, he turned back, smiled at me, and said, "Go ahead, young man. I’m in no rush—just here for a routine check-up."

I told him it was fine and insisted he go first.

He didn’t stand on ceremony and handed over his medical insurance card. I caught a glimpse of it: Born in 1934. I froze for a second and looked again. No mistake. 1934. He was exactly ninety years old.

A ninety-year-old who looked sixty, walked without losing his breath, had a voice like a bell, and eyes as clear as water.

Later, we ran into each other again in the waiting area and chatted for a bit. I learned that he was an Academician at the Chinese Academy of Sciences—the highest honor for a scientist in China. He had spent his life in physics and hadn't slowed down since retiring; he was still mentoring PhD students. I couldn't help myself and asked, "Sir, how do you maintain such health? To be ninety and still this robust is incredible."

He waved it off with a smile. "Maintenance? I don't have a secret, just one habit: I've been running for sixty years, and I haven't missed a single day."

Sixty years.

Those two words hit me like a ton of bricks. It took me a long time to process that.

The old gentleman told me that when he was thirty, he was diagnosed with high blood pressure and a fatty liver. The doctor warned him that if he didn't change his ways, he’d be on daily medication by forty. He started running that very day. At first, he couldn't even finish a single kilometer; he'd be wheezing like a pair of bellows after a few steps. But he dug his heels in. He ground through it day by day, year after year.

"The first three years were the hardest," he said, smiling like a child. "Every day I didn't want to go; every day I had an excuse. Eventually, I found a trick: I’d put my running shoes right by the door. As soon as I got home, I’d put them on. Once they were on, I’d feel too ashamed not to go out."

I asked him, "In sixty years, did you never think about giving up?"

He thought for a moment and said, "Of course. Especially in winter when the wind is howling and the snow is falling—who wouldn't want to stay under the warm covers? But then I realized something: Every time you slack off, your body keeps the tab."

That sentence made my heart skip a beat.

After coming home, I turned that thought over and over in my mind. The more I thought about it, the more it made sense. Our generation talks a big game about health, but our bodies are more honest. we buy gym memberships and don't go three times a year; yoga mats become scratching posts for the cat; we vow to run every morning but find ourselves "sealed" to the bed by the blankets after three days.

We tend to think exercise is just for weight loss, body shaping, or looking good in clothes. But after talking to the Academician, I realized that for truly formidable people, exercise isn't about looking good—it’s about "carrying the load."

He told me something I will never forget.

"In this life," he said, "living is about carrying things. When you're young, you carry your studies and your career; in middle age, you carry your family and your responsibilities; when you're old, you carry illness and loneliness. What do you use to carry it all? Your body. If the body collapses, you can't carry anything."

He mentioned a PhD student he once mentored—brilliant, a rising star in research—but the young man hated moving. He stayed huddled in the lab all day, living off takeout. In his early thirties, he suffered a heart attack and was gone.

"What a waste," the old man sighed. "Such a good seed, but he didn't know how to save up some 'capital' for his body."

"Saving capital." Those words were spot on.

We usually feel that exercise is a drain on our time and energy. But look at it from another angle: every run, every lift, every stretch is like depositing money into your future. You aren't saving numbers in a bank; you are saving the dignity of being able to go to the bathroom yourself when you're old, the grace of standing tall at your child's wedding, and the stamina to see the landscapes you dreamed of when you finally retire.

I have a childhood friend, two years older than me, who works in sales. He pushed himself ruthlessly for years. He drank until his stomach bled and pulled all-nighters until he developed an irregular heartbeat. At thirty-seven, he looked fifty. I urged him to exercise, but he always said he didn't have time—"Let me just get through this busy season first."

Last year, he collapsed. A minor stroke. Luckily it was caught early and didn't leave permanent damage. The day he was discharged, his wife held him and cried for half an hour; his two children were so scared they huddled in the corner, silent.

Since then, he gets up at 5:30 every morning for a one-hour brisk walk in the park. Rain or shine, even during the Lunar New Year.

Last month we grabbed dinner, and he said something I still remember: "I realize now that when I thought I didn't have time to exercise, it was because I didn't know that lying in a hospital bed is when you truly have no time at all."

He hit the nail on the head.

The old gentleman also shared something that deeply touched me.

He said when he was seventy, his wife passed away. They had been together since university, weathering fifty years of life’s storms, and suddenly he was alone.

"The first three months were the hardest," he said. "I couldn't sleep at all. Every time I closed my eyes, I saw her face. I thought about seeing a therapist, but in the end, I chose to run."

He recalled a morning when he went to the track as usual. As he ran, the tears just started falling. He cried while he ran. After ten laps, he had run his tears dry, and the tightness in his chest had finally eased.

"From that moment, I knew: exercise isn't just for the body; it’s a lifesaver. Not for the life of the flesh, but for the life of the soul."

I reflected on those words for a long time.

Our generation faces so much pressure and anxiety; we get "emo" at the drop of a hat. When we're wronged at work, argue with family, or feel suffocated by mortgages and car loans, many of us turn to eating, drinking, or mindless scrolling to escape. But have you noticed? Those are temporary fixes. After the meal and the scrolling, the misery remains—sometimes it's even worse.

But exercise is different.

Exercise slowly drains the negative emotions out of you. If you’re unhappy, run. By the end, drenched in sweat, you realize those "disasters" aren't quite so big anymore. When you lift until failure, you find that the things weighing you down in life have been hoisted up and cleared away.

This isn't just talk; it’s science. When you exercise, the body secretes endorphins—nature’s antidepressants. A thirty-minute run is far more effective than two hours on the couch with your phone.

The Academician is ninety now. He still wakes up at 5:00 AM, practices a set of Tai Chi, and then jogs three kilometers on the track. He says he can't run fast anymore, but he must go—even if he has to walk the distance.

"If I don't move for a day, my whole body feels wrong," he said. "It’s not an addiction; it’s a habit. Like eating or sleeping, if you don't do it, your body feels like something is missing."

I asked if he still took on students. He said yes, two PhD candidates.

"I told them: if you want to learn physics from me, you run with me first. Three times a week, five kilometers each time. If you can't hack the run, don't bother coming."

I laughed and said, "That’s a bit strict, isn't it?"

He replied seriously, "It’s not being strict; it’s being responsible. Research is a grueling business; without a good body, you can't carry the weight of it. I have to ensure they have the health to endure before we talk about whether they can produce results."

I was completely won over.

When you think about it, among those who truly achieve great things, how many have poor health? Look at the entrepreneurs, scientists, and artists who maintain their creativity—most have a habit of exercise.

Haruki Murakami runs ten kilometers a day and has for over thirty years; he calls running his "metaphor" and the pillar of his writing. These people aren't exercising because they have nothing better to do; it’s precisely because they have so much to do and so much pressure that they need exercise to "extend their lives."

I eventually added the old gentleman on WeChat. His feed is simple. Every morning he posts something similar: "Day 21,843. 3km jog. Feeling refreshed."

Rain or shine, never a day missed.

Looking at those posts, I often feel ashamed. If a ninety-year-old can stay disciplined, what right do I have in my early forties to say "I don't have time," "I'm too tired," or "Maybe tomorrow"? It’s embarrassing just saying it out loud.

So, since that day, I started running too.

It was brutal at first. One kilometer and I was gasping, my legs feeling like lead. On the third day, I almost quit, telling myself in bed, "Just take one day off." But the old man’s words popped into my head: "Every time you slack off, your body keeps the tab."

I grit my teeth, got up, put on my shoes, and went out.

I’ve been running for two months now. I’m still not fast or a long-distance pro, but I can do three kilometers in one go. The biggest change isn't the weight loss; it’s my "Jing-Qi-Shen"—my inner vitality. I used to get drowsy by 2:00 PM; now I’m alert all day. I sleep better, too, no longer scrolling until midnight.

More importantly, my mindset has shifted.

Before, when I hit a snag, my first instinct was to curl up and stew in it. Now, my first instinct is "Go for a run first." When I get back, the problem doesn't seem so insurmountable.

As the Academician said, exercise isn't a cure-all, but it gives you a body—and a mind—capable of "carrying the load."

When your body is good, your energy is high; when your energy is high, you are efficient; when you are efficient, you can handle the weight of your life. When you can handle the weight, you become steady, and your days feel grounded.

It’s a positive cycle, and the starting point is that pair of running shoes sitting by the door.

A few days ago, I went back for my knee follow-up and happened to see the old man again. He had just finished his run; his white hair was a bit tossed by the wind, but his face was flushed with color, looking incredibly spirited.

I reported my progress over the last two months. He nodded and said, "Good. Keep at it. Don't compare yourself to me; compare yourself to who you were yesterday. Ten more meters, five minutes earlier—that’s progress."

I asked him, "Sir, do you think I can stick with it?"

He patted my shoulder and smiled. "Don't ask if you can. Ask if you want to. When you truly want to do something, no one can stop you. When you don't, a hundred excuses are waiting for you."

He walked away, back straight, steps steady.

Watching him leave, I felt a profound sense of peace.

In this life, we are always wrestling with something—work, family, fate. But eventually, we realize the person we need to reckon with most is ourselves.

When you master yourself, you master everything.

The old gentleman spent sixty years on this path. He ran himself into a healthy body, a healthy mind, and a clear understanding of what life is about.

We might not all become Academicians, but we can all be like him. Starting today, put on your shoes, step out the door, and run.

Not for anything else, but so that one day, when you look back at your life, you can beat your chest and say:

"I carried myself through the storms of this journey."

And what helped you carry it wasn't the money in your account or the size of your house—it was this body that could withstand the toil, and this heart that was watered by your own sweat.

Don't wait.

Start today.

Shoes on. Get out there.

Run.