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When you have iron-deficiency anemia, the most common kind of anemia, you might never show any symptoms. A doctor could diagnose and treat you before you ever feel a thing.

However, if your condition is moderate to severe, you may experience dizziness, weakness, headaches, shortness of breath, and most likely, fatigue. That's because iron-deficiency anemia ensures you don't have enough red blood cells, robbing your body of the oxygen it needs to work correctly.

And though the disorder doesn't isn't usually serious in the long-term, anemia symptoms—especially fatigue—can put a damper on your day-to-day function. While you wait for treatment to kick in, here are some tips for sleep, sex, exercise and more.

Written by Kristen Sturt.
Medically reviewed by Joanne Perron, MD, MPH.March, 2026
Updated onAugust, 2026

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