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Keywords:

test cortisol, high cortisol symptoms, low cortisol, stress hormone testing, burnout biomarker, neurostress profile, DHEA cortisol, ORY Analyse

Kurz:

Cortisol too high or too low? Find out how the stress hormone affects your metabolism, sleep and energy – and what a test shows.

Tryptophan – the small amino acid with a big impact on mood, sleep & energy

You are sitting in a meeting, nodding professionally – and inside, your body is going wild. Cortisol and adrenaline flood your blood as if a pride of lions were after you. Except there is no lion. There is a Slack message with the subject “Urgent”.

That is exactly the problem. The Stanford neurobiologist Robert Sapolsky puts it well in his classic “Why Zebras Don't Get Ulcers”: zebras respond to stress acutely and efficiently – a short sprint, the lion is gone, cortisol settles. We humans spend another three days turning over what the boss might have meant. The result: chronically raised cortisol, quietly doing damage.

How cortisol acts in metabolism

Cortisol is not an enemy. It is a vital steroid hormone, produced in the adrenal cortex, that affects almost every metabolic process in the body. In the morning, shortly after waking, it rises steeply – the cortisol awakening response, which brings the body up to operating readiness. It raises blood sugar, mobilises fat reserves as an energy source, dampens inflammatory responses and sharpens concentration for a short while. At the right dose, cortisol is a high-performance hormone. The problem starts when the dose never comes down.

If the spark doesn't ignite

If tryptophan levels are low – or if it doesn't reach the brain effectively because it competes with other large amino acids for entry – this can manifest as mood swings, restlessness, poor sleep, and difficulty concentrating. Studies show that tryptophan supplementation can slightly improve mood and reduce anxiety in healthy individuals; overall, the effect is moderate but measurable.

Also interesting: Not only the quantity, but also the protein source matters. Different proteins significantly alter the ratio of tryptophan to other amino acids in the blood – and thus potentially the production of serotonin in the brain.

Magazine expert: When mood, energy or sleep fluctuates, it's worth thinking outside the box – the gut, neurotransmitters, and micronutrients work as a team.


Why this matters for your health – and what you can do

This is the side of the story hardly anyone knows – and it is often missed. Cortisol that is too low, known as adrenal insufficiency or, in milder form, as adrenal fatigue, brings lasting exhaustion despite enough sleep, low blood pressure, dizziness on standing, muscle pain with no clear cause and a strong craving for salt. Many people are written off for years as “just tired”, because a low cortisol level is not routinely picked up in a standard blood count. This is one of the most common diagnostic gaps in modern medicine.

Lifestyle impulses that can be implemented immediately

  1. Combine smartly: In the evening, opt for tryptophan-rich snacks plus a little carbohydrates – for example, natural yogurt with rolled oats, whole-grain bread with cottage cheese, or a small chicken wrap. This improves absorption by the brain.
  2. Colorful food makes you cheerful: An antioxidant-rich diet (berries, colorful vegetables, nuts) can also have a positive influence on mood and cognition – especially in the case of “silent inflammation”.
  3. Sleep ritual instead of sleep scroll: Dark, cool, regular – and little alcohol late in the evening (disrupts the sleep rhythm and neurotransmitter balance).
  4. Gut health is key: A healthy microbiome mix supports the tryptophan-serotonin axis (the "gut-brain axis"). Fiber, fermented foods (yogurt, kimchi), and exercise help.

Which values really count

To understand how your stress system really works, you need more than a single value. What matters is cortisol across the day, measured in saliva at four points – morning, late morning, afternoon and evening. That pattern shows whether the body powers up properly in the morning and really winds down in the evening. DHEA-S goes with it as the direct counterweight to cortisol: if DHEA is low and cortisol high, the ratio has shifted – an early sign of exhaustion and accelerated ageing. Neurotransmitters in urine – serotonin, dopamine, adrenaline and noradrenaline – show how much the nervous system has already suffered under the cortisol load. Melatonin tells you whether sleep still brings real recovery or only numbness.

Why ORY Analyse makes the difference here

Most people sense that they are too stressed. But a hunch is not a diagnosis. ORY Analyse puts together a full neurostress profile: cortisol across the day, DHEA, neurotransmitters and melatonin – interpreted, set out clearly and with concrete recommendations. Prevention does not begin with the symptom. It begins with the right value.

Test your cortisol level
Prevention

Test your cortisol level

Do you know your cortisol level? This one hormone shapes how well you sleep, how much energy you have – and whether your body is stuck in constant stress.

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Fact check & sources

  • ory-berlin.de – Laboratory diagnostics & health checks: Overview and approach to modular analyses (e.g. basic panels, vitamin check, gut check-up).
  • Scientific:

    Richard et al. L-Tryptophan: Basic Metabolic Functions… – Basic functions, serotonin relationship, behavior. (Open-access review; also listed in PubMed.)

    Jenkins et al. Systematic Review: Tryptophan supplementation, mood/anxiety (moderate effects).

    Dietary proteins & TRP ratio: Proteins influence the tryptophan ratio – relevant for uptake into the brain.

    Gut-Brain-Axis & TRP: Interaction of gut bacteria–tryptophan–serotonin.

    Overview of serotonin & mood (Layman's explanation, Harvard Health).

  • Background notes from your file: Food sources, role in protein synthesis & serotonin, notes on sleep & mood are additionally based on the provided manuscript "ATP Energy and Tryptophan".

Integration of functional medicine

Preventive lab testing for the whole family – Ory experts.

from microbiome through neurotransmitters to nutrient status. Functional medicine for more energy, resilience and long-term health – conveniently from home.

The liver is one of the most important organs in our body.

It plays a central role in metabolism, detoxification and digestion.

The liver is one of the most important organs in our body. It plays a central role in metabolism, detoxification, and digestion. However, modern lifestyles—characterized by stress, unhealthy diets, environmental pollution, and occasional alcohol consumption—can place a heavy burden on our liver. In such moments, liver tea, an old home remedy, is regaining its importance. This tea combines the power of European medicinal plants and bitter substances to strengthen, regenerate, and support the liver's detoxification process.

Why strengthening the liver is so important

The liver functions like our body's filtering system. It breaks down toxins, stores nutrients, and produces bile, which is essential for digesting fats. A weakened liver can no longer perform these functions optimally, which can manifest itself in fatigue, digestive problems, skin blemishes, or a weakened immune system.

Liver support is particularly important during detoxification processes, such as during a fast or after a prolonged period of unhealthy eating. Traditional medicinal plants, such as those found in liver teas, have proven effective for centuries.

The plants in liver tea and their effects

The blend of milk thistle seeds, dandelion leaves, chamomile flowers, yarrow herb, peppermint leaves, and wormwood makes this liver tea a valuable companion for liver problems, digestive discomfort, or during a detoxification process. Each of these plants contributes to liver health in a special way:

Overview of medicinal plants in liver tea

plant Effect Studies/Sources
Milk thistle seeds Protects and regenerates liver cells Flora et al., 2013
Dandelion leaves Promotes bile production, supports digestion Choi et al., 2010
Chamomile flowers Anti-inflammatory, soothes the gastrointestinal tract Srivastava et al., 2011
Yarrow herb Strengthens bile production, relieves cramps Folk medicine reports
Peppermint leaves Promotes digestion, reduces flatulence Liu et al., 2013
Wormwood Stimulates bile and stomach acid production Bent et al., 2004

This combination of plants works synergistically: it stimulates acid production, promotes liver cell regeneration and strengthens bile activity, thereby supporting the entire digestive tract.


Liver tea bitter substances

Tradition and history:

Liver tea as a companion in various life situations


  1. During detoxification : Liver tea helps to break down toxins more quickly and stimulates the liver's detoxification process.

  2. For digestive problems : The bitter substances contained promote bile activity and thus fat digestion.

  3. In intestinal cleansing : A functioning liver is essential for building a healthy intestinal flora.

  4. For general support : Regular consumption can help keep the liver healthy and prevent overload.



Tradition and history: medicinal plants from the Alps

The power of herbs has been known for centuries. In the mountainous regions of Europe, women were once tasked with gathering and drying the right plants to make medicinal teas. They painstakingly gathered herbs such as dandelion, yarrow, and wormwood from the meadows and slopes of the Alps. These plants are perfectly adapted to the European climate and therefore particularly effective for people living in Europe.

In the past, women carried large baskets to bring the herbs home, where they were carefully bundled and dried in airy places. This knowledge was passed down from generation to generation. Even today, many of these herbs are grown on small European organic farms, where careful harvesting and drying are practiced.

Why bitter substances are so important

Bitter substances have a variety of positive effects on our bodies. They primarily affect the digestive system and liver. Their taste stimulates the taste buds on the tongue, triggering a cascade of physiological reactions. Here are some of the key effects of bitter substances:

  1. Promotes digestion
    Bitter substances stimulate the production of stomach acid, bile, and digestive enzymes. This improves nutrient absorption and fat digestion.

  2. Detoxification and liver support
    They promote bile secretion, which relieves the liver and supports the body's detoxification. A well-functioning bile system helps efficiently digest fat and excrete metabolic waste.

  3. Support in deacidification
    Bitter substances help to balance the acid-base balance by strengthening the digestive organs and promoting the excretion of excess acids.

  4. Regulating appetite
    They counteract cravings, especially for sugar and fat, as they induce a feeling of satiety more quickly and stabilize blood sugar levels.

  5. Strengthening the immune system
    By stimulating the intestines – the seat of a large part of our immune system – bitter substances support the body’s own defenses.


Why bitter substances are missing in the modern diet

The food industry has significantly reduced the bitter taste in recent decades in order to make products sweeter and more accessible to the masses. As a result, these important substances are missing from our daily diet. Traditional foods such as chicory, endive, dandelion, and bitter herbs are rarely consumed anymore.

The correct use of bitter substances

  1. Combination in teas
    Herbal teas like our liver tea are a mild and easy way to regularly consume bitter substances.

  2. In nutrition
    Foods rich in bitter substances such as chicory, arugula, grapefruit, artichokes or dandelion leaves can be regularly integrated into the diet.

  3. Bitter drops and extracts
    Highly concentrated bitter drops can be taken before or after meals to support digestion.

Caution: Bitter substances can also be toxic

Not all bitter substances are healthy. Some plants contain bitter substances that can be harmful or even toxic in excessive concentrations. Therefore, it's important to obtain bitter substances from tested and safe sources, such as certified organic herbal blends.


Bitter substances and liver health

Bitters play a key role in our liver tea recipe. They not only support liver function but also aid in liver cell regeneration and detoxification. At the same time, they strengthen digestion and promote general well-being. Especially during times when the liver is under great strain—whether due to stress, an unhealthy diet, or alcohol—bitters in the form of liver tea can be a natural companion.


Bitter substances – the forgotten heroes of nutrition

Bitter substances are not only a valuable component of liver tea, but also an essential building block for our health. Their positive effects on digestion, the liver, and metabolism make them indispensable. By incorporating bitter-rich herbs and foods, we can strengthen our health and regain some of our traditional diet.

Organic quality – a matter of course

A high-quality liver tea should be made from organically grown plants. This ensures that the herbs are free from pesticides and chemical residues and can develop their full healing properties. Gentle drying ensures that the essential oils and bitter compounds, which are so beneficial for the liver, are preserved.

Conclusion: Liver tea as a natural companion

At a time when our livers are often overwhelmed, liver tea offers a gentle and effective way to promote well-being. The combination of traditional medicinal plants and modern research shows that natural remedies still have great significance today. Whether as part of a detox regimen, for digestive problems, or for general strengthening – liver tea is a natural weapon for liver health.


Sources and studies

  • Flora, K., Hahn, M., Rosen, H., & Benner, K. (2013). "Milk Thistle (Silybum marianum) for the Therapy of Liver Disease."

  • Choi, UK, Lee, OH, & Yim, JH (2010). "Hypolipidemic and Antioxidant Effects of Dandelion."

  • Srivastava, JK, Shankar, E., & Gupta, S. (2011). "Chamomile: A Herbal Medicine of the Past with Bright Future."

  • Liu, J., et al. (2013). "The Clinical Efficacy of Peppermint Oil for Digestive Disorders."

  • Bent, S., et al. (2004). "The Effect of Wormwood on Gallbladder Function."

This blend of tradition, modern science and organic quality makes liver tea a true treasure for health.

Yesha Karmeli
https://ory-berlin.de
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