Common Causes Of Brain Fog
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15 September 2025
Brain fog is a term used to describe a state of mental cloudiness, difficulty focusing, and impaired cognitive function. It's not a medical condition but a symptom of underlying issues
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Lack of Sleep: Insufficient or poor-quality sleep disrupts cognitive processes, reducing focus and mental clarity. Adults typically need 7-9 hours of sleep per night
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Stress and Anxiety: Chronic stress elevates cortisol levels, which can impair memory and concentration. Anxiety can overwhelm cognitive resources, leading to mental fatigue
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Poor Nutrition: Diets high in sugar, processed foods, or lacking essential nutrients can impair brain function. Dehydration also contributes significantly
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Hormonal Imbalances: Conditions like hypothyroidism or menopause can cause cognitive sluggishness
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Chronic Fatigue Syndrome: Persistent fatigue often includes brain fog as a symptom
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Autoimmune Disorders: Diseases like lupus or multiple sclerosis may affect cognitive function
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Mental Health Issues: Depression and anxiety disorders can manifest as difficulty concentrating or memory lapses
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Medications: Some drugs, like antihistamines, antidepressants, or sleep aids, list brain fog as a side effect
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Infections or Inflammation: Viral infections or chronic inflammation can impair cognitive function by affecting brain signaling
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