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Biological age tests: Should you get one?

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31/10/2025
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Biological age tests: Should you get one?
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Should you’ve heard of billionaire Bryan Johnson, you’ve possible encountered the phrase “bio age testing.”

Johnson, the topic of the Netflix documentary Don’t Die, says he’s on a quest to attain the bottom attainable “organic age” (also referred to as bio age).

He reportedly spends thousands and thousands every year on anti-aging remedies—dozens of day by day dietary supplements, weekly acid peels for his pores and skin, injections to spice up collagen manufacturing, hyperbaric oxygen remedy, and plasma infusions extracted from his 17-year-old son’s physique.

To find out what’s working, Johnson has undergone quite a few checks to evaluate his bio age. Johnson says these checks present his age is now 5.1 years youthful than when he launched into his anti-aging quest.

Apparently, he’s getting older in reverse.

Granted, not everybody’s shopping for it. A New York Instances exposé, for instance, claims Johnson’s organic age, in actuality, has elevated by 10 years.1

Nonetheless, Johnson’s “don’t die” campaign is gaining traction.

Bio age checks are a frequent matter on well-liked podcasts by Peter Attia, Joe Rogan, and Andrew Huberman. Google “bio age testing” and also you’ll see dozens of advertisements for mail-order blood or urine testing kits that declare to disclose your organic age, tempo of getting older, and extra. With costs tumbling into affordability, it’s pure to marvel…

Must you or your consumer join bio age testing?

If that’s the case, which take a look at is finest? Simply as importantly, what do you have to do with the data?

On this story, you’ll be taught:

What’s your bio age?

Your organic age (bio age) refers to how your cells perform. It’s not essentially the identical as your chronological age, which refers back to the variety of candles in your birthday cake.

For instance, let’s say Chang, a 50-year-old man, works at a desk, spends his free time in entrance of the TV, lives in probably the most polluted metropolis on this planet, eats a sweet bar for lunch, and smokes. Alternatively, Jabari, a special 50-year-old man, hits the gymnasium a number of occasions every week, lives within the mountains, doesn’t smoke, relishes his 5 servings of veggies a day, meditates, and spends most evenings in his backyard.

Genetics apart, you’d be smart to wager that Jabari’s bio age is youthful than Chang’s.

How do these checks measure bio age?

Bio age testing kits measure a number of organic markers of getting older, also referred to as biomarkers.

For instance, some checks deal with the dimensions of your telomeres, the protecting caps on the ends of chromosomes. Others measure DNA methylation, a physiological course of that chemically alters DNA.

As soon as an organization isolates and measures these markers out of your blood or urine, it plugs the bio information right into a method that calculates your bio age.

Nonetheless, for those who see a health care provider with any regularity, you’re possible already monitoring some biomarkers of getting older. For instance, biomarkers corresponding to blood stress, levels of cholesterol, and blood glucose might help predict your threat of future heart problems, a number one reason for untimely loss of life.

What’s the purpose of biomarker testing?

Biomarker testing might help you monitor your wellness proactively moderately than ready for illness signs to seem.

For some, it additionally serves as a motivator. Should you be taught you have got the bones of somebody 20 years older, this may increasingly provide the nudge it’s worthwhile to begin energy coaching persistently.

As well as, biomarkers present goal information, permitting you to trace and consider varied health-related actions quantitatively. By monitoring your blood stress, you would possibly be taught that constant train helps, however your late-afternoon power drink does the other.

5 FREE biomarker checks

You don’t should be a billionaire (or perhaps a millionaire) to trace biomarkers of getting older.

On this part, we’ll cowl a number of massively underappreciated, scientifically validated checks you should use to realize perception into your bio age—for FREE.

Earlier than scientists developed high-tech blood-based bio age checks, researchers used these free checks to calculate the tempo of getting older within the folks they studied.

FREE biomarker take a look at #1: Get off the ground

People who find themselves fitter and stronger are inclined to dwell longer.2

That’s as a result of muscle tissues do extra than simply transfer us round. Additionally they secrete anti-inflammatory substances, assist to manage blood sugar, sluggish mobile getting older, shield the liner of the arteries, and extra. All this helps scale back the danger of age-related ailments, corresponding to kind 2 diabetes, hypertension, and coronary heart illness, a phenomenon we discover in our article, The New Science of Muscle.

Associated to energy, your capability to steadiness can be key. Should you’re middle-aged or older and might’t stand on one foot for no less than 10 seconds, your threat of dying within the subsequent seven years is double that of somebody who can stand for longer, based on a examine of 1,700 folks.3

The Sitting-Rising Take a look at (SRT) is one method to assess each energy and steadiness on the identical time.

Folks with low scores on this take a look at have the next threat of dying from heart problems, based on a 12-year examine of 4,200 adults between the ages of 46 and 75.4

▶ The right way to measure it

Decrease your self to the ground together with your legs in a crisscross place. Then, together with your legs in the identical place, stand again up. As you stand, discover for those who should use part of your physique—hand, shin, knee—as leverage.

To attain your self, begin with 10 factors. Then, for every physique half you used to face, deduct some extent. Subtract a half level for those who turned unsteady or misplaced your steadiness.

Take into account that this (and different checks) function a proxy on your health. A low rating signifies that your steadiness and coordination, muscle energy and energy, and mobility might all require some consideration.

FREE biomarker take a look at #2: Squeeze a ball

Just like the SRT take a look at, your grip energy supplies perception into your total health. If the muscle tissues in your palms are weak, the muscle tissues all through your physique usually tend to be weak, too.

Poor grip energy may also predict future muscle weak spot. In a single examine, folks with a weak grip have been extra prone to stroll slowly and be unable to rise from a chair, full rigorous housekeeping, or climb a flight of steps 25 years later.5

Low grip energy has additionally been related to:6

  • Low bone mineral density
  • Elevated threat of falls
  • Poor dietary standing
  • Despair
  • Poor sleep, cognitive perform, and/or high quality of life
  • Elevated threat of coronary heart illness, most cancers, and untimely mortality

In keeping with one examine, grip energy was a greater indicator of longevity (or lack thereof) than blood stress.7

▶ The right way to measure it

Seize a normal tennis ball, and squeeze as exhausting as you may, for so long as you may.

Should you can handle 15 to 30 seconds earlier than your grip fatigues, you’re doing advantageous. Ninety seconds places you properly above common—something over 90 ranks you solidly within the upper-third percentile.

Should you’re beneath 15, understand that this take a look at can be only one indicator of your total energy. (And squeezing balls to enhance grip energy with out coaching the remainder of your physique is unlikely to make important enhancements in your total well being and health.)

A hand-held dynamometer—accessible to be used at most occupational therapists’ and a few gyms—may also take a look at grip energy. (Should you’re keen to shell out some money, you should purchase your personal for someplace between $100 and $500.)

FREE biomarker take a look at #3: Stand on one foot

A capability to steadiness on one foot for an prolonged interval might help scale back your threat of falls, one of many main causes of injury-related loss of life amongst older adults.

As well as, many alternative bodily programs—the eyes, interior ear, skeletal muscle tissues, and mind—should work collectively that can assist you keep upright.

Circumstances like diabetes, coronary heart illness, and most cancers can all have an effect on steadiness. Consequently, an lack of ability to face on one foot can function a warning signal for eroding well being and health.8

▶ The right way to measure it

Stand close to a wall or chair for security. Hold your eyes open and palms in your hips. Then, carry your dominant leg and begin timing your self. As soon as you set your foot down, cease the clock. Repeat the take a look at together with your non-dominant leg.

After you have your occasions, evaluate them to the next averages, from a examine out of Duke College, to see how you probably did in comparison with your age-matched friends.9

Age Seconds on one leg (males) Seconds on one leg (females)
30-39 59 56
40-49 56 55
50-59 42 48
60-69 40 38
70-79 27 25
80+ 13 11

FREE biomarker take a look at #4: How you are feeling

Typically you already know why you’re drained, such because the morning after binge-watching the previous few episodes of a thriller. When you compensate for your sleep, the weariness lifts.

That’s not the identical factor as fatigue, which describes persistent exhaustion that worsens over time and interferes with life. Along with feeling bodily drained, somebody who’s fatigued feels mentally boring and emotionally exhausted.

Consider fatigue as an early signal that one thing’s off, particularly for those who don’t know the trigger.

Let’s say you’ve already dominated out the standard suspects like an excessive amount of caffeine, dehydration, an excessive amount of alcohol, treatment unwanted side effects, power stress, or an excessive amount of or too little train. What’s left is probably going a sleep problem or a creating well being downside corresponding to anemia, weight problems, despair, most cancers, or diabetes, to call a couple of.

Should you’re 60 or older, fatiguability—or how worn out you are feeling after an exercise—may also predict longevity.

In keeping with analysis out of the College of Pittsburgh Medical Middle, the upper somebody scores in fatiguability, the upper their threat of loss of life sooner or later.10 Different analysis has linked excessive fatiguability with declines in gait velocity, strolling capability, and different checks of health.11

▶ The right way to measure it

To measure fatigability, use a device referred to as the Pittsburgh Fatigability Scale. Utilizing a 0 (no fatigue) to five (excessive fatigue) scale, fee how fatigued you assume you’ll really feel after finishing the next actions:

Exercise Length Rating (0 to five)
Leisurely strolling half-hour
Brisk or quick strolling 1 hour
Mild family exercise 1 hour
Heavy gardening or yard work 1 hour
Watching tv 2 hours
Sitting quietly 1 hour
Reasonable-to-high depth energy coaching half-hour
Collaborating in a social exercise 1 hour
Internet hosting a social occasion for 60 minutes 1 hour
Excessive depth exercise half-hour
Add all scores:

Should you rating lower than 15, you’re doing properly. Scores between 15 and 24 are a warning signal. Something 25 and above is considered extreme, and price mentioning to your healthcare skilled.12

FREE biomarker take a look at #5: Physique composition

Regardless of well-liked perception, each too little and an excessive amount of physique fats can affect well being for the more severe, as we discover in our infographic, Is body fat good or bad for you?

An excessive amount of fats raises the danger for: Too little muscle raises threat for:
Coronary heart illness Coronary heart illness
Hypertension Hypertension
Most cancers Most cancers
Fatty liver illness Stroke
Insulin resistance Insulin resistance
Sort 2 diabetes Quicker mobile getting older
Irritation Irritation
Joint misery Despair and anxiousness
Sleep apnea Falls and lack of steadiness

Your muscle mass additionally performs a task, which is why somebody’s physique composition issues greater than their weight.

The gold commonplace strategies that estimate physique composition—underwater weighing, air displacement (Bod Pod), and dual-energy X-ray absorptiometry (DEXA)—actually aren’t free.

Nonetheless, a current examine decided {that a} good old style (and low-cost) tape measure can present a comparably correct estimate of physique composition.13

▶ The right way to measure it

To make use of a tape measure to maintain observe of your physique fats proportion, measure:

  • The widest a part of your neck
  • The narrowest a part of your waist (For some folks, this will likely be on the navel. For others, it is perhaps barely above the navel)
  • The widest a part of your hips

Make sure the tape is cosy however not so tight that it cuts into the pores and skin. After you have your measurements, plug these numbers—alongside together with your age, intercourse, peak, and weight—into our FREE Body Fat Calculator, which can take it from there.

Physician-approved biomarker checks

Relying on the place you reside on this planet, the next checks will not be free. Nonetheless, as a part of routine preventative care, your insurance coverage would possibly cowl them.

Physician-approved take a look at #1: Blood panel

In case your major care physician recommends yearly blood work, it’s for good purpose.

By holding tabs on a number of blood markers, you may see in case your well being is trending towards kind 2 diabetes or coronary heart illness, each main causes of untimely mortality.

Many blood markers will also be influenced comparatively rapidly (inside 6 to 12 weeks) via way of life modifications, complement protocols, or medicines. This makes them sensible instruments for monitoring whether or not varied way of life or medical modifications are working.

▶ The right way to measure it

Should you’re not already doing so, contemplate having the next blood markers examined yearly. Then, speak to your well being care skilled about what your numbers imply. They could use the next numbers, alongside together with your blood stress, to calculate a heart problems threat rating.

Blood marker Optimum vary
Complete ldl cholesterol < 200 mg/dL*
LDL < 100 mg/dL for these with out coronary heart illness
< 70 mg/dL for these with a historical past of coronary heart assault or stroke
HDL > 60 mg/dL
Triglycerides < 150 mg/dL
Alipoprotein B (Apo B) < 133 mg/dL (males)
< 117 mg/dL (females)
Lipoprotein (a) < 30 mg/dL
C-reactive protein < 2.0 mg/L**
Fasting glucose < 100 mg/dL
Hemoglobin A1C < 5.7%

*Milligrams per deciliter of blood
**Milligrams per liter

Physician-approved take a look at #2: Bone density

When researchers examine wholesome super-agers aged 90 and older, robust bones are certainly one of their defining options.14

That could be as a result of, like muscle tissues, bones are dwell organs that secrete substances that could be useful to total well being and longevity.15

For instance, bones secrete osteocalcin, a hormone that performs a task in bone reworking. When osteocalcin circulates within the physique, it’s thought to play a task in every little thing from serving to muscle tissues to provide ATP to regulating mind neurotransmitters.

Due to these various roles, it’s thought that, as bones put on away, osteocalcin ranges drop, contributing to many age-related well being issues, together with diabetes, low muscle mass, and cognitive points.16 17 (A minimum of, that’s the speculation. Most of this analysis has been finished on mice.)

Osteocalcin apart, lack of bone density can, after all, result in fractures, which might improve your threat of loss of life for as much as 10 years after a break.18

It’s particularly necessary to maintain tabs on bone well being for those who’re in any of those high-risk classes:

  • You’re feminine and went via menopause earlier than age 45.
  • You’ve been sedentary most of your grownup life.
  • You are taking medicines corresponding to diuretics or stomach-acid blockers, that are linked with an elevated threat of osteoporosis.
  • You may have a historical past of nicotine use or extreme alcohol consumption.
  • You may have a medical situation, corresponding to diabetes or thyroid illness, that raises your threat.
  • You may have a household historical past of osteoporosis.

▶ The right way to measure it

Twin-energy X-ray absorptiometry (DEXA) scans are a kind of X-ray that measures the quantity of bone mineral content material packed right into a sq. centimeter of bone.

Insurance coverage typically received’t cowl these scans for folks youthful than 65 until there’s a documented threat of creating osteoporosis. Out of pocket, the typical price is about $300.

While you obtain your DEXA outcomes, you’ll see a T-score that represents how your bone density compares to the typical bone density of a younger grownup with peak bone mass. A T-score of +1.0 to -1.0 means you have got regular bone mineral density for somebody your age. Something beneath -1.0 means you may need osteopenia (low bone mineral density) or osteoporosis (porous bones which can be vulnerable to fracture).

Industrial bio age checks

When you have some cash to burn, you may be taught an terrible lot about your physique.

Right here, you’ll discover a fast run-down on a few of the extra high-tech checks you may get and what they’ll inform you.

Nonetheless, earlier than we get into the main points, we need to level out a couple of caveats:

▶ Organic age can fluctuate over time, and by organ. Somebody might undergo a interval of accelerated getting older—saying, throughout a interval of intense stress—then their fee of getting older might sluggish as they focus extra on restoration. Moreover, organs can age at completely different charges. For instance, somebody with coronary heart illness might have a comparatively older coronary heart than their kidneys. (Not all checks measure particular person organ age, nevertheless it’s changing into extra frequent.)

▶ Industrial checks received’t all the time precisely mirror the modifications you’re making. Till extra analysis helps the reliability of those checks, consider your behaviors over remoted take a look at outcomes. Should you’re consuming extra fruits and veggies, exercising extra persistently, managing stress, and in any other case slaying the wholesome way of life division, don’t sweat your outcomes. Deal with doing the issues we all know enhance well being.

▶ If an organization pairs your take a look at outcomes with a tough promote for a proprietary and costly complement protocol, be cautious. It’s higher to share and focus on your outcomes with a trusted well being skilled than take well being recommendation from a profit-seeking stranger over the web.

Industrial take a look at #1: DNA methylation

DNA methylation is a organic course of that chemically alters DNA. As a result of the speed of methylation accelerates with getting older, it may be used to estimate somebody’s organic age and life expectancy, finds analysis.19 20 21

The Horvath Clock and DunedinPACE each measure particular biomarkers that can be utilized to raised perceive somebody’s methylation fee. Scientists developed these checks to assist different scientists examine how varied way of life components, environmental exposures, and medicines have an effect on getting older. They didn’t develop the checks as a means for the typical individual to pinpoint their organic age. (Which hasn’t stopped firms from promoting DNA methylation testing kits to the general public.) They price about $300.

Should you determine to get certainly one of these checks, take note your outcomes received’t offer you an entire image of your well being and longevity. Growing older usually happens at various charges all through the physique. Your liver would possibly age sooner than your coronary heart or mind, for instance. So for those who measure DNA methylation in your blood, that’s all you already know about. Put one other means, a DNA methylation take a look at isn’t an alternative choice to your annual wellness checkup or blood work.

Industrial take a look at #2: Telomere evaluation

Telomeres—the protecting caps on the ends of chromosomes—put on away with age. The size of a telomere can predict what number of occasions a particular cell can divide earlier than dying.

Abnormally quick telomeres are related to a number of genetic ailments. For that reason, when physicians suspect somebody may need inherited a genetic illness, they’ll order a particular kind of telomere take a look at—the flow-FISH take a look at—to measure the telomere size in all of the cells in a blood pattern.22 23

It’s extra debatable whether or not telomere checks can predict getting older in wholesome folks.

Simply as importantly, the telomere take a look at marketed to the general public, often called the qPCR telomere take a look at, isn’t utilized in analysis or medication. These $100 checks are advantageous for those who’re merely curious—simply don’t base well being and health choices in your outcomes.

Industrial take a look at #3: VO2 Max

For years, solely elite athletes cared about VO2 max, which describes the utmost quantity of oxygen that your physique can use throughout train.

Extra just lately, nonetheless, some specialists have instructed that VO2 max can function a measure for athletes and non-athletes alike to trace the speed at which their our bodies are getting older.

Folks with excessive VO2 max have a tendency not solely to be extra bodily match but in addition much less prone to develop coronary heart illness, diabetes, most cancers, or stroke.24 25 26 27

In an observational examine that adopted the well being outcomes of 5,107 Danish males over 46 years, males with above-average V02 max throughout center age lived a median of 5 years longer than males with below-average V02 max. Every unit improve in VO2 max was related to a 45-day improve in longevity. The researchers instructed VO2 max might extra precisely predict all-cause mortality than excessive ldl cholesterol, weight problems, hypertension, and insulin resistance.28

You would possibly consider V02 max as a canary and your getting older physique as a coal mine.

As you age, your chest wall turns into extra inflexible, the muscle tissues that encompass the lungs weaker, and the oxygen-carrying blood vessels calcified and fewer elastic. The guts additionally squeezes with much less power, max coronary heart fee drops, muscle mass and energy decline, the mitochondria in cells and muscle tissues lose their effectiveness, amongst different variations.

Along with elevating your threat for a lot of completely different ailments, these modifications may also have an effect on VO2 max, which tends to say no 10 % per decade beginning round age 30.29 30

Previously, the one method to reliably measure VO2 max was in a health lab.

You’d put on a metabolic masks and a coronary heart monitor whilst you ran or cycled to exhaustion. The masks collected your expired carbon dioxide and monitored how a lot oxygen you sucked into your lungs. This lab-based testing continues to be probably the most correct method to measure V02 max in addition to different key health metrics corresponding to:

  • Max coronary heart fee, or the very best variety of occasions your coronary heart can beat per minute throughout train
  • Ventilatory threshold 1, or the purpose throughout train when the physique switches from primarily utilizing fats for gas to utilizing a mixture of fats and glucose or glycogen (saved glucose) for gas.
  • Ventilatory threshold 2, or the purpose the place your physique strikes away from cardio metabolism (which makes use of oxygen) to anaerobic metabolism (which doesn’t use oxygen).
  • Tidal quantity is the quantity of air inhaled or exhaled throughout every breath

Relying on the place you reside, you would possibly have the ability to get your VO2 max examined for round $150.

Nonetheless, for those who don’t have entry to a VO2 max clinic, three considerably much less correct choices exist.

▶ The 1-mile stroll take a look at

Put on a coronary heart fee monitor as you stroll one mile on a flat floor, corresponding to a treadmill or working observe. As quickly as you full the mile, report your coronary heart fee and stroll time. Then, plug it into the next method to calculate your VO2 max:

132.853 — (0.0769 × Weight) — (0.3877 × Age) + (6.315 × Intercourse) — (3.2649 × Time) — (0.1565 × Coronary heart fee)

If that seems like an excessive amount of math, you can too use a free online tool.

▶ The smartwatch take a look at

Many smartwatches will estimate your VO2 Max for you based mostly on info the watch gathers out of your exercises, intercourse, and age. In comparison with in-office testing, sensible watches can over- or underestimate V02 max, particularly in people who find themselves very off form or extraordinarily match.31

Due to this, you don’t essentially need to use your sensible watch measurement to find out your present state of well being. Nonetheless, it can enable you to to see tendencies. For instance, does your VO2 estimate drop after a couple of weeks of skipping your normal spin class? If that’s the case, that’s good info to have.

▶ The PR take a look at

Health efficiency correlates with longevity. Should you’re getting sooner at working a sure distance or can go an extended distance than earlier than, you’re getting fitter and rising your probabilities of dwelling a protracted, wholesome life.

One method to take a look at this: the 12-minute run take a look at, also referred to as the Cooper take a look at. (It is a validated method to estimate VO2 max—and reveals a couple of 90 % correlation with lab-based measurements.)

Right here’s the way it works:

Run as quick as you may on a flat floor, corresponding to a treadmill set at a 1 % incline or working observe, for 12 minutes. After 12 minutes, report your distance. Then, plug it into one of many following formulation to calculate your VO2 max.

Distance in Miles Distance in Kilometers
VO2 Max = (35.97 x distance in miles) – 11.29 (22.351 x distance in kilometers) – 11.288

In lieu of doing math, you can too use a free online calculator.

The right way to change your organic age

Strive to think about the data you collect about your physique as simply that—info.

It’s not an ethical judgment of who you might be as an individual.

Simply as importantly, it’s not a everlasting state of affairs.

  • Should you’re weaker than different folks your age, you may develop stronger.
  • In case your ldl cholesterol or blood glucose ranges are excessive, you may take steps to decrease them.
  • In case your physique is getting older sooner than your birthdays, contemplate exploring key way of life modifications which will assist flip the state of affairs round.

You may have choices. Nonetheless, most individuals make two massive errors with regards to longevity-related way of life modifications.

Mistake #1: Ignoring evergreen, big-impact methods

It’s the straightforward, boring, “I’ve heard this one million occasions earlier than” well being practices that, when finished persistently, add as much as a protracted, wholesome life.

We’re speaking about issues like…

  • Consuming extra minimally processed meals and fewer ultra-processed meals
  • Consuming extra brightly coloured fruits and veggies
  • Transferring your physique recurrently
  • Getting sufficient relaxation and sleep
  • Having fun with neighborhood, time in nature, and different actions that make life significant
  • Retaining alcohol consumption average
  • Not utilizing tobacco
  • Carrying sunscreen
  • Flossing

And that’s only a partial checklist.

In keeping with hundreds of research, individuals who observe these and different high-impact methods not solely dwell longer, but in addition dwell higher. They’re stronger, happier, and fewer prone to spend their later years disabled or in ache.

(Should you’d prefer to see the place you stand with regards to massive affect well being and longevity methods, try our FREE Longevity Assessment.)

Nonetheless, with regards to well being, health, and longevity, many individuals pursue choices with minimal affect (at finest). They attain for the newest, stylish complement moderately than taking steps to stop smoking, as only one instance.

Right here’s the factor: Large rock methods require modifications in habits. If day by day bodily exercise have been as straightforward as popping a capsule, walkers and cyclists would clog up the streets in your neighborhood.

(It’s exactly this purpose why so many individuals want the assist of a certified health coach who has undergone coaching within the science of habits change.)

Mistake #2: Not turning information into motion

The info gathered from biomarker getting older checks may give you a way of management.

Nonetheless…

Information, in isolation, doesn’t result in an extended life.

Gathering information with out altering your habits is like checking your reflection within the mirror, seeing spinach wedged between your incisors, and leaving it there.

It’s essential take away the spinach for the mirror test to be worthwhile.

Biomarker testing is identical.

Should you don’t use your bio information to tell habits change, you’re losing your time and money.

Think about your biomarker information as a baseline or place to begin.

Then, use it to evaluate whether or not varied way of life modifications or medical interventions are transferring you nearer to your objective of dwelling an extended, more healthy life.

References

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