9 causes of dizziness: Dehydration, heat, anaemia, and more

By Namita S Kalla | March 13, 2025

9 causes of dizziness: dehydration, heat, anaemia, and more

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Dehydration can cause dizziness. When the body lacks enough fluids, it leads to dizziness due to low blood volume, affecting balance

Dehydration

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Exposure to high temperatures or overexertion in hot weather can lead to dizziness. The body struggles to cool down and  maintain hydration

Heat exposure

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Some medications, such as blood pressure meds, sedatives, or antidepressants, can cause dizziness as a side effect

Medication side effects

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People with migraines often experience dizziness or vertigo, sometimes even before or during a migraine attack, alongside headache

Migraines

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 A sudden drop in blood pressure (orthostatic hypotension) can cause dizziness, when standing up quickly from a sitting position

Low blood pressure

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Low red blood cell count or iron deficiency can prevent enough oxygen from reaching the brain, causing dizziness or fatigue

Anaemia

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High anxiety or panic attacks can cause dizziness due to rapid breathing, increased heart rate, and a sense of lightheadedness

Anxiety

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A drop in blood sugar levels can cause dizziness, lightheadedness, and even fainting, especially in people with diabetes

Low blood sugar levels

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Conditions like vertigo, Meniere’s disease, or labyrinthitis affect the inner ear, leading to dizziness and balance problems

Inner ear issues

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