Longevity protocol instead of gut feeling: How your body becomes the most exciting game of your life

I spent over two decades building systems in Silicon Valley : search engines, platforms, infrastructure for millions of users. One thing was unthinkable there: operating a critical system without measurement. No dashboard, no metrics, no alerts. Just hoping everything would work?

Excluded.

Over 15 years ago, I noticed something. That's exactly how I was treating the most important system I possess: my own body.

And things weren't going well at all back then. Outwardly, I was successful. Inwardly, it was a different story: high blood pressure , excess weight , too much stress , no balance between work and rest . I was close to burnout. The absurd thing is: professionally, I controlled systems using data every single day. But when it came to my own body, I just guessed and hoped for the best.

The turning point came when I started treating myself like one of my systems. Measure, understand, counteract, remeasure. Blood pressure, weight, lab results, sleep, stress: number by number, a picture emerged. And with the picture came the levers. Not all at once, but one value after another. Over the years, this is how I got my blood pressure and weight under control and regained the balance I had long lacked.

This experience led to the principle that still forms the core of my work today: measuring instead of guessing .

Why your feelings are a bad sensor

Your body's signals aren't worthless. The problem is something else: you simply don't have a sensor for many crucial processes. You won't feel a vitamin D level of 18 ng/ml . You won't feel an elevated homocysteine level . Nor will you feel an omega-3 index of 4 percent.

These processes work silently. For years, often decades. By the time they become noticeable, much time has been lost.

"I feel fine" is therefore not a strategy. It's flying blind.

Perhaps you're familiar with one of these two situations. You're doing many things right – exercise, proper nutrition, maybe even supplements – and yet your energy and focus still can't withstand the strain.

Or you've been to the doctor, all your test results were "normal," and yet you're constantly exhausted, sleeping poorly, and your body isn't responding the way it used to. These two things aren't contradictory. Both are measurement problems: your feelings aren't wrong; it's just that the right thing hasn't been measured yet. Because in standard lab tests, "normal" only means: no illness. It doesn't mean: optimally nourished, resilient, and regenerated.

The good news: Almost everything that matters here can now be measured. Easier and cheaper than ever before.

A change of perspective: Your body as a game

What helped me early on was a change of perspective. I started to see the whole thing like a game.

Every good game works the same way. You learn the rules. You discover your character's strengths and weaknesses. You try out strategies, get feedback, and improve. You level up.

In your own body, it works like this: The rules are the biological mechanisms. How is energy produced in the mitochondria, what does inflammation do to the blood vessels, how does sleep regulate regeneration? Your character is you, with your individual blueprint, your DNA.

The strategies are interventions: nutrition, targeted supplements, sleep, exercise, movement. And the feedback doesn't come from gut feeling, but from measurement.

The loop is always the same: measure, understand, intervene, remeasure . That's the core of it. And like in any game, you sometimes lose a round. An intervention doesn't work, a value doesn't change. That's not failure. That's information.

One more word about the metaphor, so that it is not misunderstood:

Play isn't just playing around. Above all, it means: you're not a spectator. Those who are exhausted or feel their bodies giving out often experience a sense of powerlessness. This approach resolves precisely that. Every measurement transforms a vague feeling of "something's wrong" into a concrete, changeable number. Powerlessness becomes agency. I know from personal experience how much of a difference that makes.

Three examples from my practice show what this looks like in practice. And why it is more demanding than it initially seems.

Example 1: Vitamin D, the underestimated classic

Vitamin D is not a vitamin, but a prohormone . It is involved in the regulation of well over a thousand genes: immune system, bones, muscles, cell protection. In my practice, I regularly see initial values between 15 and 25 ng/ml, especially in winter.

A typical case: a woman in her mid-40s, exhausted for months, sleeping poorly, concentration at rock bottom. Her check-up with her GP showed "everything normal." However, vitamin D wasn't even on the standard profile. When measured, her level was 17 ng/ml. This doesn't automatically explain everything, but it's a concrete, correctable start. And it's not an isolated case, but rather an everyday occurrence in my practice.

The strategy seems simple: measure, supplement, remeasure. In functional medicine, we usually aim for 50 to 70 ng/ml , significantly more than what standard laboratories consider "sufficient." After 8 to 12 weeks, a follow-up test shows whether the dose is appropriate.

But this already reveals the first level of complexity. Vitamin D doesn't work alone. It needs magnesium as a cofactor for activation. It needs vitamin K2 so that the mobilized calcium is deposited in the bones and not in the blood vessels. And the response to a dose varies greatly from person to person, partly due to genetic variations in the vitamin D receptor (VDR) . Two people, same dose, completely different levels. That's why follow-up testing isn't an extra step. It's the core of the process.

Example 2: The Omega-3 Index, a look inside your cell membranes

The Omega-3 Index measures the proportion of EPA and DHA in the membranes of your red blood cells. It provides a direct insight into the quality of your cell membranes – the structures through which every cell communicates, absorbs nutrients, and processes signals.

The underlying mechanism: The body uses the fatty acids in your cell membranes to build messenger substances that either fuel inflammation or actively resolve it. A low omega-3 index shifts the balance towards silent, chronic inflammation – one of the key drivers of aging.

Most of the people I test have levels between 4 and 6 percent. According to research, the target range with the lowest risk is over 8 percent . The strategy: high-quality omega-3 in a sufficient dose, ideally with a fatty meal. Follow-up measurements should be taken after about four months, as this is how long it takes for the membrane composition to regenerate.

There's a second layer to this as well: it's not just the quantity that matters, but also the ratio of omega-3 to omega-6 in the overall diet, the quality of the supplement, and individual absorption. Without follow-up testing, you won't know if your strategy worked.

Example 3: Homocysteine, where your blueprint comes into play

The third example shows how your DNA becomes part of the equation. Homocysteine is an intermediate product of metabolism. Normally, the body processes it quickly in a process called methylation . This same process also controls your gene regulation , epigenetics . If it malfunctions, homocysteine accumulates. Elevated levels are considered an independent risk factor for blood vessels and the brain.

From a functional perspective, an optimal value is below approximately 8 µmol/l . Many people have significantly higher levels without realizing it. Intervention involves the B vitamins B12, folate, and B6 . As cofactors, they drive methylation.

And this is where it gets individual. A significant portion of the population carries variants in the MTHFR gene that slow down the activation of folic acid. For these individuals, conventional folic acid is a weak move. The already activated form works considerably better. This is the moment when your genetic blueprint transforms from a concept into a tool. It doesn't predict your fate. It explains why interventions affect you differently than your neighbor, and which option you should choose.

The honest truth: It's complex. This is precisely where AI comes in.

I don't want to sugarcoat anything. These three examples alone show that nothing exists in isolation. Vitamin D depends on magnesium and K2. The omega-3 index depends on the overall fatty acid balance. Homocysteine links B vitamins to your genetics. Then there's sleep, exercise, stress, and blood sugar. Everything influences everything else.

Anyone who tries to keep all of that in their head will fail. I say this as someone who tried using tables for years.

This is precisely where AI changes the game. It can do what our working memory can't: keep track of hundreds of data points simultaneously, recognize patterns over time, consider interactions, and then generate a prioritized, understandable recommendation.

Not as an oracle. As a co-pilot who manages the complexity so you can focus on implementation.

To prevent data chaos, a framework is needed. For me, that framework is... 25 Vitality Factors : a roadmap covering all relevant areas, from micronutrients and mitochondria to sleep, exercise, stress regulation, and environmental factors. It ensures that you not only optimize your favorite areas but keep the whole picture in view.

In our daily work, we've built a system around this. The EVER App is the cockpit: it translates your data into daily guidance and tracking. With points and levels, because a game should feel like one. EVER Precision provides the foundation: the right tests and lab results, meaningful target ranges, and a personalized supplement routine . Analyzed by AI, reviewed by experts. Because no matter how good the technology is, the responsibility for interpretation remains with experienced humans.

The result: Your personal longevity protocol

At the end of this process, you won't find a rigid ten-point plan from a book. Instead, you'll have something far more valuable: your personal longevity protocol. It's a combination of nutrition (including targeted supplements), sleep, exercise, and movement, validated through measurements and continuously refined . It's demonstrably tailored to your body because you've seen it in black and white. Level by level, value by value.

One last honest point. This approach isn't for everyone. Some people define health by how they feel. "I listen to my body, I feel fine." Some have a genuine aversion to numbers and tests. I respect that. I probably won't reach these people with this text, and that's okay.

But perhaps you belong to the other group. You've been wondering for a long time what's really going on in your body. You're looking for guidance instead of gut feeling. Then the first step is easier than you think: a first, well-chosen measurement.

That's when the game begins.

Want to know which areas are relevant for you? The 25 vitality factors give you the complete map, compactly summarized in our free booklet .

Reiner Kraft, Ph.D. Expert in applied epigenetics, micronutrients and longevity