APEX PWR | Lessons in Longevity
40 Is Not Old. But Your Lifestyle Might Need a Hard Look.
Key Takeaways
- Forty is not old. When people feel old at 40, it is usually a lifestyle signal, not an age verdict, and lifestyle is the part you can change.
- Four foundations carry the most weight in your 40s: daily movement, managing stress, strength training, and nutrition. Strength training pulls double duty, supporting both daily movement and stress.
- Nutrition is the foundation underneath everything. Heavy alcohol, processed food, and adding a little weight every six months are the quiet trends that compound.
- You cannot manage what you do not measure. A DEXA body composition scan, a VO2 max test, and a One-Time Macro Breakdown turn guesses into real numbers and trends you can act on.
- Measuring your food builds food freedom, not restriction. It is what lets you make confident choices at events, while traveling, and when going out, without derailing your progress.
There is a take making the rounds on social media right now that lands harder than it should: the unpopular opinion that 40 years old is actually young, and that if you feel old at 40, it is less of an age issue and more of a lifestyle issue. It is the kind of line that stings precisely because there is truth in it.
Forty is not old. In the arc of a modern life, it is closer to halftime than the final whistle. So when someone hits their early forties and feels creaky, tired, and a step slow, the honest question is not "what did age do to me?" It is "what has my lifestyle been doing to me, quietly, for the last decade?" That distinction matters, because lifestyle is the part you get to change.
What I See in My Own Circle
I think about this a lot, because I am watching it play out in real time with the people I came up with.
"Many of my closest friends are those that I played football with in college at Kansas State. As we all are approaching 40, navigating our careers and growing families simultaneously, it's becoming more and more obvious who are the ones that are still making time for themselves with strength training and nutrition."
Jeron Mastrud | Co-Founder, Former NFL Tight End


None of us are professional athletes anymore. We all have careers pulling at us and kids who need us. The gap between the friends who feel good in their bodies and the friends who feel old comes down to neither luck nor genetics. It traces back to a handful of habits, kept or dropped, over years. That is the whole ballgame, and it is good news, because habits can be rebuilt at any age.
The Lifestyle Check-In: Four Foundations of Longevity in Your 40s
If 40 has you feeling older than you want to, here is where to look. None of these are exotic. The power is in doing them consistently, and in being honest about where you actually stand.
Daily Movement
The body is built to move, and the modern default is to sit. Daily movement does not mean a punishing workout every day. It means walking, taking the stairs, playing with your kids, and staying out of the chair for long unbroken stretches. It is the baseline that everything else sits on top of, and it is the easiest foundation to rebuild first.
Stress
Career and family in your late thirties and forties is a pressure cooker, and chronic stress does real physiological damage over time. Managing it counts as a longevity input, not a luxury or a self-care cliche. The good news is that several of the other foundations, movement and strength in particular, are among the most effective stress regulators available, which is why they keep showing up on this list.
Strength Training
Strength training is the foundation that pulls double duty. It counts as daily movement, it is one of the best tools for managing stress, and it directly defends the lean muscle and bone density that decline with age. If you only have the bandwidth to add one new thing, this is the one with the widest return.
I want to speak directly to the former athletes reading this. If you played in college or professionally, you trained to compete for roster spots and win championships. As you get older, things change, and it can be genuinely defeating to walk into a gym and feel like a fraction of the athlete you once were. I know, because that exact feeling kept me from working out at all for a while. The mental block was real.


Then it clicked for me. The training program does not need to be that intense anymore. It just needs to be consistent. The goal shifted away from chasing the athlete I used to be and toward being healthy and strong for my wife, my kids, and myself. Independence and staying active in your 60s and 70s starts with what you are doing in your 30s and 40s. Building muscle now is what protects you later.
Nutrition: The Foundation
Underneath all of it is how you fuel your body. This is where the quiet trends live. Heavy alcohol. Processed food as the default. Adding a few pounds every six months without quite noticing. Individually small, these compound into the "I feel old" feeling by your mid-forties. The fix is not a crash diet, but an honest, measured look at what you are actually putting in, so you can adjust based on data instead of guessing.
Stop Guessing. Start Measuring.
Here is the part most people skip. You cannot manage what you do not measure, and almost everyone is guessing. They guess at their body composition by looking in the mirror. They guess at their fitness by how a flight of stairs feels. They guess at their nutrition by vibes. Guessing is how a decade slips by with the scale creeping up and the energy creeping down.
The alternative is to get real numbers, then watch the trends. Two metrics in particular are widely regarded as among the best windows into long-term health.
VO2 Max
Cardiorespiratory fitness, measured directly. It is one of the strongest predictors of all-cause mortality in the research, ahead of many of the risk factors people worry about more. The encouraging part: it is highly trainable at any age.
VO2 Max TestingDEXA Body Composition
The Gold Standard for measuring fat mass, lean mass, and bone density. It tells you what the scale never can, whether you are holding muscle and protecting bone, or quietly losing both.
DEXA ScanOn the research behind VO2 max: a study of more than 122,000 adults found the least-fit group carried roughly five times the all-cause mortality risk of the elite-fit group, and a separate analysis of over 750,000 people found each meaningful step up in fitness was associated with a 13 to 15 percent drop in mortality risk, regardless of age. Cardiorespiratory fitness is one of the most powerful modifiable inputs to how long, and how well, you live. A VO2 max test in Portland, Oregon gives you that number to work from.
On the body side, a DEXA scan separates fat from lean mass and reads your bone density, the two things body weight alone will never tell you. For anyone in their 40s, that baseline is worth far more than the number on a bathroom scale.
Why Measuring Builds Food Freedom, Not Restriction
This is the part people get backwards. They assume that measuring food makes eating harder, a life of weighing chicken and logging every bite forever. The reality runs the other direction.
Get a One-Time Macro Breakdown, then measure and track your food for a stretch, even just to understand what you are putting in. At a minimum, after three to six months, you start to see trends. You can make small, easy adjustments that actually move the needle, grounded in real information instead of guesses. And here is the payoff: this builds food freedom, not a life of restriction.
Once you understand your numbers, you can make smart selections at events, while traveling, and when going out, the kind that keep you on track without derailing you or setting you back. That is freedom, not restriction.
It is the same lesson our nutrition team teaches every day. Knowing your foundation does not put you in a cage. It hands you the keys.
Where the Work Happens: Strength Training in Tigard and Beaverton
Knowing your numbers is the starting line. Building the strength, the lean tissue, and the durability that keep 40 feeling young is the work itself, and it is work you do not have to figure out alone. We would love to have you train with us. The easiest way in is the Strength Training Foundations Trial, and there are two paths depending on how you like to train.
Group Strength Training
We handle the programming, ensuring a proper, progressive overload training program that actually builds measurable strength and lean tissue, the kind that shows up on your DEXA scan. All in a premium group setting inside our state-of-the-art, 10,000 square foot athletic training facility.
Schedule Your TrialPersonal Training
For those who want something one-on-one. Fully individualized coaching and programming built entirely around you, your goals, and your starting point, with a coach focused on you for the full session.
Schedule Your TrialWhichever path fits, the Strength Training Foundations Trial is a low-friction way to experience the coaching and the programming before you commit. No experience required, and no need to already be in shape to start. That is what we are here for.
Jeron Mastrud is a co-founder of APEX PWR in Tigard, Oregon and a former NFL tight end who played collegiately at Kansas State. A Beaverton native, he leads content and community at APEX and writes on training, nutrition, and long-term health for busy parents and professionals navigating careers and growing families.
Build Your Longevity Baseline in Portland and Beaverton, Oregon
If you are in your 40s in the Portland metro and the "I feel old" feeling has crept in, the move is not to accept it. The move is to take an honest look and get your numbers. APEX PWR brings DEXA body composition, DEXA bone density, VO2 max testing, nutrition coaching, and strength training under one roof in Tigard, so the assessment and the plan live in the same place. For neighbors in Beaverton, we are a short drive south down OR-217, and Beaverton athletes and active adults make up a large part of who we train.
Get Your Longevity Numbers
VO2 max for cardiorespiratory fitness. DEXA for body composition and bone density. Real baselines to build healthy aging on, not guesses.
VO2 Max Test DEXA Scan One-Time Macro BreakdownFrequently Asked Questions
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