Taking better care of yourself, only to feel more tired?
You probably know someone like this, or you may be that person yourself. Take Eugene's story. Everyone sees him as the "data king" and the "battery king" — 40 years old, with the looks and fitness of a 30-year-old.
⚠️ The conflict between his lifestyle and his body:
He did not smoke or drink, trained six times a week, took large doses of B12, and even had IV drips to keep his fitness up.
In theory he should have been bursting with energy, but what his body sent back was brutal — unusual fatigue, low testosterone (on the edge of male menopause), even a falling white blood cell count from overtraining.
Which brings us to the central question: why, after all that effort, was his body still idling? The answer lies neither in the muscles nor in the blood, but at the core of the cell — in the mitochondria.
What are mitochondria? (The body's miniature power plants)
If you think of the body as a high-end smartphone, the organs are the various apps running on it, and the mitochondria are the battery.
How they work is really a precision conversion process:
- Input: the food we eat (carbohydrates, fats) and the oxygen we breathe in.
- Conversion: through biochemical reactions such as the citric acid cycle, producing ATP, the body's universal energy currency.
- By-product: generate power and you inevitably produce exhaust — what we commonly hear called free radicals (ROS).
Here is where health hinges: young, healthy mitochondria generate energy efficiently and clear the exhaust quickly, while aging mitochondria produce less energy and more exhaust, leaving the body under enormous oxidative stress.
What do mitochondria need? (Key nutrients and conditions)
Many people reach for a B complex whenever they feel tired, but that idea may need revizing. Eugene's case shows it: he took B12 in quantity, yet testing found large amounts of B12 sitting unused in his blood. That is proof his body was utilizing it very poorly, because his mitochondrial power plants were missing the key cofactors.
🔋 The fuel and parts this battery actually needs:
- CoQ10: a key player in the electron transport chain, like the conveyor belt in a power plant.
- NAD+: an important coenzyme for repair and energy metabolism.
- Magnesium and zinc: minerals without which the enzymes cannot do their work.
- Oxygen: which is precisely why aerobic exercise matters so much for aging well.
When the power plant goes on strike: the cascading breakdown across body and mind
When mitochondrial performance drops, the body starts shutting down functions that are not essential to survival in order to save energy, and that sets off a chain reaction:
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🔴 Declining fitness and athletic performance:
Recovery suffers, the body cannot repair quickly enough after exercise, and markers such as TPA (tissue polypeptide antigen) can rise. -
🔴 Endocrine and sexual dysfunction:
When energy is short, the body prioritizes survival over reproduction. Testosterone synthesis falls as a result — in Eugene's case the value once dropped as low as 336. -
🔴 Difficulty conceiving:
Eggs and sperm are among the most energy-hungry cells in the body. Mitochondrial function directly determines the quality of conception. -
🔴 Scattered focus and a foggy brain:
The brain consumes 20% of the body's total energy. Run short of power and the direct result is brain fog and poorer decision-making.
Are you working blindly, or managing precisely?
Eugene's early failure came down to working blind. Effort without data behind it often just burns through the battery's lifespan faster.
Now that we understand the mechanism, how do we repair it? In the next article we will reveal exactly how Eugene used biohacking to restore that battery and go from an exhausted man to earning a Hyrox Red Bull 100 badge.
"I take a lot and feel nothing" usually means what you are short of is not what you are taking. To find out which link in the chain is stuck, you need to look at the actual mitochondrial markers.
See the mitochondrial energy metabolism panel →Frequently asked questions
What are mitochondria?
Mitochondria are the organelles inside cells responsible for producing ATP, and they are known as the cell's power plants. Cells in high-energy tissues such as the heart, muscle and brain contain especially large numbers of them.
Why do B vitamins still leave me with no energy?
B vitamins are cofactors in energy metabolism, but producing energy also requires other conditions: CoQ10, carnitine, magnesium, and enough mitochondria of sufficient quality. If any link is missing, supplementing a single nutrient can only do so much.
Which markers should I look at for low energy?
Common directions include CoQ10, organic acid metabolites and oxidative stress markers, along with thyroid and adrenal function — the latter two determine the "throttle" signal the mitochondria receive.
Want to know what state your body is in right now?
Body Decode, 136 markers, covers 17 health categories including nutrients, metabolic, cardiovascular, immune, endocrine and detoxification, with a 60-minute consultant report review and a 120-day action plan.
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