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Fatigue is a common symptom with many possible causes—ranging from lifestyle habits to medical conditions. It’s more than just feeling tired; it’s a persistent lack of energy or motivation that doesn’t go away with rest.
🧠 1. Stress, Anxiety, or Depression
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Mental health struggles can drain physical energy
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Chronic stress raises cortisol and disrupts sleep
🛌 2. Poor Sleep Quality
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Insomnia, sleep apnea, or inconsistent sleep schedules
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Not getting 7–9 hours of restful sleep
🍽️ 3. Nutritional Deficiencies
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Common culprits include:
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Iron deficiency (anemia)
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Vitamin B12 or folate deficiency
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Vitamin D deficiency
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Magnesium or iodine imbalances
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Poor diet or restrictive eating can contribute
🩺 4. Medical Conditions
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Thyroid problems (especially hypothyroidism)
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Diabetes
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Heart disease
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Chronic infections
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Autoimmune diseases (like lupus or rheumatoid arthritis)
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Chronic fatigue syndrome (CFS/ME)
💊 5. Medications
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Antihistamines, sedatives, blood pressure meds, and some antidepressants may cause fatigue
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Side effects or drug interactions can also play a role
☕ 6. Overuse of Caffeine or Sugar
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Short-term energy boost followed by crashes
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Disrupts sleep and hormonal rhythms
🚭 7. Alcohol, Smoking, or Substance Use
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Interferes with oxygen flow, sleep, and energy metabolism
🏃 8. Lack of Physical Activity
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Paradoxically, inactivity makes you more tired
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Regular movement boosts circulation and energy
⚖️ 9. Chronic Inflammation or Infection
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Ongoing immune response can drain energy reserves
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Conditions like long COVID, Lyme disease, or mono
🚰 10. Dehydration
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Even mild dehydration reduces energy, focus, and physical performance
🧬 11. Hormonal Imbalances
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Adrenal fatigue (controversial, but linked to chronic stress)
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Menopause or low testosterone
If fatigue is persistent, unexplained, or getting worse, it’s important to talk to a healthcare provider for evaluation.