HealthNotes

HealthNotes

Healthnotes offers comprehensive, science-based health and lifestyle information. Written with you in mind, Healthnotes answers the most commonly asked questions with credible, easy-to-understand information — edited by physicians who review over 550 scientific and medical journals to keep content current, factual, and balanced.

Immune System Conditions

Immune System Conditions: Main Image
Immune system disorders include immunodeficiencies, in which—due to genetics, pharmaceutical side effects, or infections—the immune system is less active than normal. They also include autoimmune diseases, in which a hyperactive immune system attacks normal tissues as if they were foreign organisms.

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