Symptoms

Symptoms & Body Systems

Browse common health symptoms by body system. Learn what might cause them, when to self-manage, and when to seek care.

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Updated Aug 5, 2026Editorial policy

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Cardiovascular

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Chest Pain: When Is It an Emergency?Chest pain has many causes, and some are medical emergencies. Call your local emergency number right away if the pain feels like heavy pressure, lasts more than a few minutes, or comes with shortness of breath, sweating, nausea, or pain spreading to your arm, jaw, or back. Do not drive yourself to the hospital if you think you may be having a heart problem.Updated Aug 5, 2026	Aug 5, 2026

Neurological

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Dizziness: Causes and TreatmentDizziness means feeling lightheaded, unsteady, or like your surroundings are spinning. Common causes include inner ear problems, dehydration, low blood pressure, low blood sugar, and some medicines. Most cases are not serious, but dizziness with chest pain, severe headache, or weakness needs emergency care.Updated Aug 5, 2026	Aug 5, 2026
Headache: Causes, Types & When to WorryMost headaches are harmless and are triggered by common things like stress, poor sleep, dehydration, or eye strain. Knowing your headache type and pattern helps you manage it safely at home. Get urgent care right away for a sudden severe headache, or one with fever, confusion, weakness, or vision changes.Updated Aug 5, 2026	Aug 5, 2026

Systemic

1 entry

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Fatigue: Why You Feel Tired All the TimeFeeling tired all the time is common, and everyday factors like poor sleep, stress, or low activity often explain it. But lasting fatigue can also signal a health problem that needs care. This page covers common causes, self-care steps, and warning signs that mean you should see a doctor.Updated Aug 5, 2026	Aug 5, 2026