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Diseases and conditions

Information on common diseases and health conditions: what they are, causes, symptoms, and when to seek help.

Close-up of a person's hands with swollen finger joints resting on a table, illustrating early rheumatoid arthritis
Diseases and conditions

The 4 Stages of Rheumatoid Arthritis: How the Disease Progresses, Symptoms, and When to Get Help

June 03, 2026

Person with a cold at home, wrapped up on the sofa with tissues and tea, in a bright, cozy setting
Diseases and conditions

Flu (influenza): symptoms, transmission, prevention, and self-care

June 01, 2026