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8 Longevity Tests Many In Their 40s Secretly Fail

6 min readFeb 24, 2026

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A buddy told me this ‘longevity’ take he keeps seeing online: ‘I don’t care about living to 100.’

And I was like… bro, that’s the wrong assignment.

Most people think longevity is just a numbers game, like you’re trying to rack up years the way you rack up airline miles. But that’s not what’s actually on the line.

What nobody really talks about is how the last 10–20 years can get quietly stolen-not by some dramatic movie moment, but by a long stretch of feeling run-down, limited, and not really living.

So the real enemy isn’t death… it’s living forever in “low battery mode.” 🔋💀

Which is why the better question isn’t: “How do I live longer?” It’s: “How do I stay capable, independent, and feeling good for as long as I’m here?”

That’s why I want to share The Longevity Olympics: 8 “events” where you’re not competing against anyone else-just you.

Run through them honestly, find the one you’d fail today, and start there

Event 1: Being Metabolically Healthy

  • Waist to Hip Ratio: Under .5
  • Fasting Glucose: Under 100 mg/dL
  • HbA1c: At or below 5.6
  • FFMI: Men: above 19, Women: above 16

The problem with this one is that no one knows where they stand.

Nearly 88% of American adults have at least one marker of poor metabolic health.

The waist-to-height ratio is one of the most underrated measurements in health, and it’s simple: Your waist circumference should be less than half your height. Anything above .5 is the danger zone.

Research consistently shows it outperforms BMI as a predictor of metabolic disease, cardiovascular risk, and visceral fat load.

The visceral fat packed around your organs, your blood sugar trends, and your inflammatory load are red flags ruining your health years before you feel them.

A low FFMI tells you there’s not enough muscle to protect your metabolism and keep you functional as you age. This is the event that determines everything else.

But fear not. Next week in one of my follow up posts, I’m sharing the protocol techniques i’ve seen some using to get their bodies in shape for summer. We’re talking 20 pounds or more gone before the season starts. Keep an eye out for that one, just need a little more research :)

Event 2: Sit-To-Stand Power Test

Target: From a chair, stand up and sit back down 5 times in under 12 seconds. No hands.

This isn’t just some random “fitness challenge.” Researchers actually use this exact sit to stand move to gauge lower-body power, fall risk, and how well someone can stay independent as they age.

And here’s the key: it’s not only whether you can do it, but it’s how fast you can do it. Power (producing force quickly) tends to drop off faster with age than plain old strength.

So if your sit-to-stand is super slow, it can be a sign your legs are losing the quick “pop” they need to keep you steady and self-sufficient. A lot of people in their 40s assume they’ll crush this… but don’t guess-time it and see.

Event 3: Loaded Ruck Walk (Backpack Needed)

Target: Walk 1 mile with 20 to 25% of your bodyweight on your back in under 20 minutes, breathing through your nose the entire time.

Most people can walk a mile. Almost nobody thinks to test what happens when you add load.

Rucking, walking with a weighted pack, is one of the most honest assessments of real-world physical capacity there is.

It trains your cardiovascular system, your hips and legs, your trunk stability, and your bones all at once. The nasal breathing standard is the key piece.

If you have to open your mouth to keep the pace, you’ve exceeded zone 2, and your aerobic base isn’t where it needs to be.

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This is the test that most closely mirrors what life actually demands. Carrying a backpack through an airport. Hiking with your kids. Moving through the world under load without falling apart.

Event 4: Push-Up Test

Target: 20 consecutive push-ups for men. 10 for women.

A 2019 Harvard study found that men who could complete 40 or more push-ups had dramatically lower cardiovascular risk than those who could barely manage 10.

The push-up tests upper body endurance over raw strength, which is more relevant to how the body actually ages. No equipment, no excuses. Drop and find out where you are.

Event 5: Grip Strength

Target: 60-second dead hang from a bar.

Grip strength is one of the most consistent predictors of all-cause mortality in the research. It sounds strange until you think about what grip actually represents.

The ability to carry things, catch yourself, hold on, and pull yourself up. When your grip goes, your independence tends to follow.

If you can hang from a bar for 60 seconds, you have functional upper body strength worth protecting.

Event 6: Cardiovascular Capacity

Target: VO2max above 40 ml/kg/min or 9:00–9:30 minutes mile or 9–11 minute 3-mile cycle. Resting heart rate below 60 bpm.

​VO2max is your body’s ability to use oxygen, and it’s one of the strongest predictors of how long and how well you live.

Above 40 is meaningful. Above 50 is excellent. The practical test: walk up three flights of stairs and hold a conversation at the top.

If you’re winded, your cardiovascular system is aging faster than you are. Resting heart rate below 60 signals good vagal tone, strong heart output, and genuine fitness, not just activity.

Both numbers improve with consistent zone 2 cardio done two to three times a week and a HIIT session once a week.

Event 7: Balance

Target: Single-leg stand, eyes closed, 30 seconds.

This one surprises people. A 2023 study found that adults who couldn’t hold a 10-second single-leg stand had nearly double the mortality risk over the following 7 years.

Balance is a neurological skill. If you don’t train it, you lose it. And the fall risk it protects against isn’t just inconvenient.

For people over 65, a serious fall is often the beginning of a very different kind of life. Try it right now. Stand on one leg, close your eyes, and start counting.

Event 8: Mobility

Target: Sit-rise test score of 8 or higher out of 10.

Stand up, then lower yourself down to the floor into a cross-legged position without using your hands, knees, or grabbing onto anything and then get back up the same way.

You start with 10 points. Every time you use a hand, a knee, or brace yourself on something for support, subtract 1 point.

A long-term study published in 2025 in the European Journal of Preventive Cardiology followed 4,282 people for 12 years and found that participants who scored 0–4 were about 5–6 times more likely to die during the follow-up period compared to people with high scores.

This one test rolls a lot into one: hip mobility, flexibility, balance, and coordination. And for many people in their 40s, it’s the moment they realize those abilities have been quietly slipping for a while.

Don’t BS yourself… can you actually do all of these? 😅

You don’t need a perfect score. Nobody rolls out of bed as Captain Longevity.

But you do need to know your score because you can’t improve what you refuse to measure (that’s like stepping on the scale with your eyes closed and calling it “progress”).

People don’t age poorly because of one dramatic, movie-style bad decision. It’s usually death by a thousand paper cuts: they stay busy, stay productive, stay “on the grind”… and quietly lose strength, balance, mobility-everything that matters when they’re 75 and trying not to faceplant in the kitchen.

The Longevity Olympics isn’t about being an athlete. It’s about staying in the game long enough to actually enjoy the life you’ve built.

So go down the list. Find the event you’d fail today. Start there… and then keep leveling up.

NO GIMMICKS, JUST RESULTS!

Originally published at https://www.tumblr.com.

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Drew Brennan
Drew Brennan

Written by Drew Brennan

Hi, my name is Drew, I am nothing special, and an everyday hard-working person who chose to make some small, but healthy changes in my life that may help you.