Why Am I Tired Analyzer
Answer 8 yes/no questions to find the most likely reasons you're exhausted.
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Frequently asked questions
Why am I tired even after 8 hours?+
Quantity ≠ quality. Fragmented sleep, alcohol, late caffeine, irregular schedule, or undiagnosed sleep apnea can leave you exhausted despite full hours.
Could it be a medical issue?+
Persistent fatigue despite good sleep hygiene warrants a doctor's visit — thyroid issues, anemia, depression, and sleep apnea are common causes.
Why am I tired in the afternoon?+
The post-lunch dip is a normal circadian phenomenon around 1–3 PM. Bright light, brief activity, or a short nap resolves it without caffeine.
Can dehydration cause tiredness?+
Yes — even 1–2% dehydration measurably reduces alertness and increases perceived effort.
Is being tired the same as being sleepy?+
No — sleepy means falling-asleep prone; tired can mean low energy without sleep drive. They have different causes and treatments.
Does iron deficiency cause fatigue?+
Yes — low ferritin (even without anemia) is a common, under-diagnosed cause of fatigue, especially in menstruating women and vegetarians.
When should I see a doctor about fatigue?+
If fatigue persists 2+ weeks despite good sleep, ask for a check of thyroid, ferritin, B12, vitamin D, and sleep apnea screening.
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