Do you often feel tired, even after a full night’s sleep? Do you experience daytime
sleepiness, lack of concentration, or a persistent sense of exhaustion? Constant fatigue is not just a byproduct of modern life; it can also be an early warning sign of underlying conditions that require attention.

Today, we explore the most common causes, the
recommended medical tests, key symptoms to monitor, and the most effective remedies, including a focus on the central role of iron in this condition.

Constant fatigue: when to be concerned?

Feeling tired after long days or sleepless nights is normal.

However, when fatigue becomes persistent, unexplained, and begins to interfere with quality of life, it is important to investigate the underlying causes. Fatigue lasting more than six months, accompanied by
cognitive issues (e.g., mental confusion) and physical symptoms (e.g., muscle weakness, pain, non-restorative sleep), may fall under chronic fatigue syndrome (ME/CFS), recognized by the WHO.

Chronic fatigue: symptoms and warning signs

  • Excessive daytime sleepiness
  • Difficulty concentrating and memory problems (mental confusion)
  • Heavy legs and muscle weakness
  • Recurring headaches
  • Irritability and mood swings
  • Discomfort after even minimal physical effort
  • Frequent sensation of “brain fog”

If you recognize one or more of these symptoms for several weeks, it is advisable to consult your physician and consider specific diagnostic tests.

a person suffering from chronic fatigue syndrome

What causes constant fatigue? The main factors

  1. Iron-Deficiency Anemia: One of the most common causes, particularly among women of childbearing age, vegetarians/vegans, and individuals with gastrointestinal disorders. Iron deficiency impairs adequate tissue oxygenation, resulting in weakness, pallor, shortness of breath, and persistent fatigue.
  2. Thyroid Disorders: Hypothyroidism slows metabolism and can lead to fatigue, weight gain, cold intolerance, and excessive sleepiness.
  3. Chronic Fatigue Syndrome (ME/CFS): A complex condition with still poorly understood causes, often linked to immune and metabolic dysfunctions.
  4. Silent Chronic Inflammation: Numerous studies suggest a connection between fatigue and low-grade chronic inflammation, which can interfere with iron absorption
    and generate “functional anemia.”
  5. Sleep Apnea: Respiratory disturbances during sleep can prevent restorative rest.
  6. Psychological Disorders or Chronic Stress: Anxiety and depression are strongly associated with chronic fatigue symptoms.
  7. Vitamin Deficiencies and Unbalanced Diet: Lack of B vitamins, vitamin D, magnesium, or folate can contribute to persistent tiredness.

Chronic fatigue: recommended tests

When experiencing ongoing fatigue, a comprehensive blood work evaluation is the first step. Recommended tests include:

  • Complete blood count (CBC)
  • Serum iron, ferritin, and transferrin
  • Vitamin B12 and folate
  • TSH, FT3, and FT4 (thyroid function)
  • C-reactive protein (CRP) and ESR (inflammatory markers)
  • Liver and kidney function tests

These tests help identify nutrient deficiencies, inflammatory states, or underlying endocrine disorders that may be contributing to fatigue.

a girl undergoing blood tests to detect chronic fatigue syndrome

Anemia, inflammation, and fatigue: an often overlooked triad

Many chronic inflammatory conditions can mask a functional iron deficiency: blood levels may appear normal, yet iron is trapped within cells due to inflammation. This prevents the production of hemoglobin and cellular energy, leading to symptoms such as chronic fatigue, difficulty concentrating, and muscle weakness.

This phenomenon is known as “anemia of inflammation”, commonly observed in autoimmune disorders, gastrointestinal diseases, and post-viral syndromes.

Persistent tiredness and weakness: effective solutions

Beyond obtaining an accurate diagnosis, targeted supplements can help counteract fatigue caused by iron deficiency or chronic inflammation. One such product is Ferridol by Eidon Salus.

Ferridol is a natural, highly bioavailable supplement that contains:

  • Chelated Bisglycinate Iron: a gentle form of iron that does not irritate the gastric mucosa and is fully absorbed.
  • Lactoferrin (100 mg): promotes the release of iron “trapped” in cells due to inflammation.
  • Vitamin C (240 mg): essential for improving intestinal iron absorption.
  • Folic Acid (400 mcg): crucial for red blood cell formation and recommended during pregnancy.

Ferridol not only provides exogenous iron but also reactivates the metabolism of iron already present in the body, addressing the root cause of so-called “functional anemia.” This dual action makes it a unique product, suitable in situations such as:

  • anemia or pre-anemia
  • chronic fatigue
  • fatigue associated with inflammation
  • deficiencies linked to heavy menstruation, pregnancy or unbalanced diets

Why choose Ferridol?

  • No gastrointestinal side effects
  • Synergistic combination of active ingredients
  • Targeted action on fatigue, anemia, and inflammation
  • Safe and beneficial even during pregnancy
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Chronic fatigue: complementary natural approaches

  • Iron-Rich Diet: Include legumes, spinach, red meat, and nuts to support optimal hemoglobin levels.
  • Vitamin C Intake with Meals: Enhances intestinal absorption of dietary iron.
  • Stress Management Techniques: Practices such as mindfulness, yoga, and outdoor activities help regulate the body’s stress response.
  • Regular Sleep and Quality Rest: Essential for recovery, energy restoration, and cognitive function.
  • Moderate Physical Activity: Supports circulation, metabolism, and overall energy balance.
foods rich in iron to combat chronic fatigue

Conclusions

Chronic fatigue is a complex issue, but it should never be underestimated.

Whether it stems from iron deficiency, an inflammatory disorder, or hormonal imbalance, it is crucial not to
ignore the signals your body sends. The most effective approach is integrated: accurate diagnosis, targeted tests, a balanced lifestyle, and, when necessary, intelligent supplementation. Ferridol, with its innovative and comprehensive formulation, represents a tangible ally in restoring energy and overall well-being.

If you feel persistently tired for no apparent reason, listen to your body and take action.

FAQ

What condition might I have if I am always tired?

Chronic fatigue can be a symptom of various conditions, such as anemia, thyroid dysfunction, ME/CFS, chronic inflammation, or psychological disorders. A medical diagnosis is essential.

Which tests should I undergo if I feel constantly tired?

Comprehensive blood work including complete blood count, iron, ferritin, TSH, vitamins, and inflammatory markers.

When should fatigue be a concern?

When it lasts for weeks, it is accompanied by other symptoms, and interferes with daily activities.

What can I take for chronic fatigue?

After consulting a physician, targeted supplements such as Ferridol can be used when there is iron deficiency or malabsorption.

Can low iron cause mental confusion?

Yes. Iron deficiency compromises cerebral oxygenation, leading to cognitive difficulties and mental fatigue.